His videos are absolute unadulterated clickbait, leveraging the platform of YouTube to a pitch-perfect extent to be controversial, and it does detract from the validity of his opinions. There is no value, because any valid criticisms are cloaked in shit.
The campaign is staggeringly easy at recommended or higher power and this is a valid complaint. It can pose a challenge if you approach missions at lower power which also rewards more XP. I died several times in story missions doing this, especially the later ones, and perhaps I deserve to be mocked for sucking at Destiny as a result. But I stand by my assertion that if someone comes to Destiny 2 seeking challenging gameplay the campaign essentially the starting bar you must clear to take part, not a full representation of the engaging combat scenarios the game has to offer if you seek them.
Many players joined D1 and are joining D2 with this as their first game of this time, in some cases even their first FPS or game with mouselook. I know it sounds crazy but I've met them. A Nightfall (even a relatively easy one like this week's) is a considerable challenge for these players, let alone the Prestige version, the raid or its eventually hard mode.
There's been an attempt to make it possible for all of these players of vastly different skill levels to coexist somewhat seamlessly in this universe and it's not an easy balancing act but I personally consider Bungie to have succeeded vastly more than they have failed here.
Difficulty options for initial playthroughs would be a good addition.
i wouldn't worry about it too much.
I've already spent more hours post-initial campaign than I did playing through it, and the challenge is there. Incrementally improving your strategies to blitz through a Nightfall or getting chewed up yet pulling off a Heroic Public event with just a few seconds to spare is very satisfying. Can't wait for the raid. 
