I've yet to actually see death threats and more about people threatening to unsub which should be scarier for the company as far as threat level is concerned.
But yeah people have this weird attachment to the devs like they're one phone call away from them. They're not your friends and constructive criticism is valid.
It's funny that it took us getting limited races when there's no reason it shouldn't be limited (modders literally aren't getting paid and still do a better job), jobs being near unplayable (MCH, WHM, DRK), and blatantly dismissive comments (go heal Ultimate if you want a challenge) for the playerbase to be up in arms about their feedback.
It's okay to criticize developers for things we as a community feel are misguided. And there wouldn't be complaints if the changes are actually good.
White Knights doing the most for a gaming company (mind you a company that isn't an indie studio) that could care less about their devotion to the game.