Everything this community says about Blizzard they've been saying about Blizzard since at least WarCraft 2. Since WarCraft 2 I've been hearing that Blizzard doesn't care about the community, is lazy, is out of touch, just wants our money, is shit and not innovative enough, caters to the wrong crowd, is staffed by morons, knows less than the community about their product, etc. The Blizzard community is simultaneously one of the most dedicated communities and one of the most toxic.
People leave gaming companies constantly. Look at any very successful game company and see how many people are still there after 10 years / 20 years / 30 years. The main difference here with Blizzard is that we actually tend to know the big names in the company because they engaged with the community. (Something else we've been accusing them of not doing enough since the 90s fwiw)
This guy left and I wish him the best but he cited some really stupid reasons for reason. The emphasis on guilds? lol. Yeah guilds are necessary in Classic because the only real character progression is in raids and a guild helps with that. Forcing guilds on people because this guy likes the idea would be a horrible business decision. So if that and Ashran are the best he's got, probably good that he's peacing out. I loved going into Classic and hearing everyone talk about "the community" that had been lost somewhere along the way in WoW because I was sure it wasn't going to play out the way they thought and surprise it didn't. There was a sense of community for about 2 weeks and then it was like retail except somehow more soulless. Just farming the same content that's completely brain dead for a rare trinket / BIS piece with 4 other people doing the same thing so we could faceroll a very trivial raid. Repeat for BWL, repeat for AQ. I probably won't even login for Naxx. After about a month or so of Classic it became just logging in for raid time / checking auctions / buying stuff / buffs and doing the raid with 39 people that honestly couldn't care less about each other. So just like retail, except trivial, and you're carrying more people in your raid group.
You know what style for an MMO doesn't work? What this guy is advocating. It's been tried, and it has failed every single time, most notably with WildStar.