Few pointers on the Twin Snakes hate:
"Cutscenes in later games are just as goofy"
Yes, even in MGS1, there were goofy anime moments BUT it was relative to the characters, even in the later games, the likes of Raidan, Vamp, Grey Fox, etc, are shown to be the characters with supernatural or greatly enhanced like elements. So it feels in line with the characters when those cutscenes involving them go a bit crazy.
Snake on the other is always portrayed as a veteran experienced soldier taking on the odds, and that's remained consistent throughout all the games (even Peace Walker, when shit goes WAY Anime). It's a contrast to the gameplay when you CAN'T then do stuff shown in cutscenes, seeing Snake in Twin Snakes do backflips, bouncing around off rockets, do 360 no scope kills, etc, and then controlling him and he's just, ...normal, feels jarring to what you're seeing in the cutscenes.
Meanwhile, take VR Missions where you get to play as Grey Fox, oh, look at that, you can do these crazy jumps, stealth attacks and weird electric shield stuff in his training stages. In MGS2, Raidan is always shown as being more nimble than Snake and then when he gets the HF Blade his gameplay style is changed up and that's before he goes all Deus Ex and gets augmented to just be a damn human head on a cyborg body by the time MGS4 comes around.
That's why the cutscenes in Twin Snakes are considered bad and OTT, it's not just the supernatural characters or the enhanced characters doing crazy shit, ...it's ALL the characters. Look at Liquid Snake, where in cutscenes where he's giving a simple speech he's just randomly doing frontflips and tap dancing on a railing, WHY?
You know which cutscene DOESN'T feel out of place with the rest of the series though? The Grey Fox corridor scene in Twin Snakes since it actually feels like we got to see what we didn't in the original and it fit with the aftermath we saw in the PS1 version.
The biggest offender...
The MUSIC and sound mixing, in a series that does this stuff really well, you can tell Twin Snakes feels like the odd one out, even Portable Ops and Peace Walker got the music style and mixing sorted. This is a series which takes music cues and uses them to effect and even as little easter eggs in later games, which is all completely lost in Twin Snakes, I have no idea why they couldn't just remix the original score but instead we got this bland uninspiring action movie ambience, just compare the following...
Cavern
https://youtu.be/-gzVbTqJKZc
https://youtu.be/jAVl5RLylTQ
Tank Hanger (One of the few actual remixed tracks)
https://youtu.be/NTeGMIKoKkY
https://youtu.be/EqnNyanKjw8
Holding Cells
https://youtu.be/CdXLCCY5zrc
https://youtu.be/2WH-vYVlkMQ
Enclosure
https://youtu.be/158aAmVyDug
NO TWIN SNAKES VERSION
Blast Furnace
https://youtu.be/F8AKYlUrZBs
https://youtu.be/ZgobaRV-Hbc
Rex's Lair
https://youtu.be/1kt589CU3Xc
https://youtu.be/SNnfxoIMJuE
The soundtrack alone is just missing so much atmosphere, you can't even say it's trying to be more like MGS2/3 since they have brilliant scores too, not just blandness, I mean, let's take MGS2:
https://youtu.be/G5PF3Yg-vVE
https://youtu.be/G5PF3Yg-vVE
https://youtu.be/dgGUtm_FzU4
https://youtu.be/06x5gRB5kZk
Compare that to the Twin Snakes music, it just feels worlds apart, I mean, damn, let's even compare it to MGS4 during Act 4:
Rex's Lair
https://youtu.be/rNqUhh08nZA
Enclosure
https://youtu.be/m0NqNq_hnqQ
MGS4 just proved even more how much of a wrong step the score for Twin Snakes was by using the original PS1 version music and remixing/remastering that. And then there's the issues of the sound design in Twin Snakes just feeling off at times or badly mixed depending on the area, something which really feels wrong compared to the rest of the series which usually keeps things very tight and well done in that area.
These two things for me are worse than the unbalanced MGS2 features being tossed in, couple that with the voice acting where the majority of the cast sound bored to be back, except David Hayter and Cam Clarke who feel like the only ones who seem to be putting the effort in. Add on top of that the slightly weird stiff looking models for the characters, etc. Yes it has better graphics and gameplay, but everything else just felt worse off, and in MGS1/2/3, atmosphere, music, acting, etc, are what really add to the experience of the game which felt crippled in Twin Snakes.
Sorry if this post is too long, but as a long time fan of the MGS series, I thought it would be good to at least describe my own thoughts and reasons why I dislike Twin Snakes instead of just saying "it sucks".
edit: And just to mention for people doing drive by posts saying things like "Oh, it's just PlayStation fanboys who can't accept it as a Nintendo game", that couldn't be further from the truth seeing as REmake, RE4, etc, were praised and adored for years by people, REmake is how a ...remake should be done, keeping it incredibly faithful to the original whilst improving things without ruining the direction.