While saying something like, "I hope it gets destroyed even if the gameplay is good" is a bit too superficial, shitting on the game as it is now is entirely justified.
As a fighting game you know what you're getting into when you're buying it, you're getting considerably less playable scenario content and banking for the late game hoping that whatever this game does attracts a consistent multiplayer community online and off. With what little content is there, visual attractiveness and gameplay becomes more highly valuable.
BECAUSE this is a mainline game, this is the mentality, KoF13 is over and support is dropped in order to support a newer game, to not curb the words it means you're willing to drop that community and game in an attempt to relocate remainders to support the new product. Because it is a mainline game means choices in it are where they want the series to go period, sacrifices and commitments are always needed to push the fold but this is why it sucks.
KoF13 entered the fold strong, most importantly standing out from other fighting games with a great KoF-style entry we haven't had in years, and possibly the best looking sprite based game ever to date.
Assuming gameplay is the same, which is fine, but you're getting a similar KoF game but in unappealing 3D revamp in which:
1) The stylistic charm of KoF is lost almost entirely and may never go back to sprites due to this obviously being a choice to prioritize budget and gameplay over it.
2) Competitors like SF5 and Guilty Gear look immeasurably better and in GG's case still fantastically captures the sprite aesthetic.
3) As a fighting game since arcade days, fighting game's greatest strength are it's visuals because fighting games are spectator sports. With this art style you completely lost that wow factor of former game and that arcade attract mode, but more importantly to me even if the game play is good (assumed for argument), personally one of the biggest factors is how cool the characters look which fuels me and people I want to convince to play the game to get it and play often to see cool shit.
tldr; It just sucks that we're loosing a fantastic game who had a unique place in the industry, to get a game that is similar in game play, but pretty much uncontested down grade on it's only other strength, and I don't even play KoF13, rip.