That's a strawman.
There's nothing wrong with discussing opinions.
But "FIRE THE ENTIRE DEV TEAM BECAUSE THEY'RE ALL TRASH" isn't discussing an opinion. It's not even giving any support or logic to the opinion. Sure, it's technically still in the realm of opinions, but it starts to cross over into ignorance at that point if you have no logic or reasoning behind it. And it's most certainly not worth discussing if you have no actual sustenance behind such an "opinion".
Like, it's fine to say "I dislike WoW" and that's the end of your opinion. You don't need to justify something simple like that. But if you're calling for punishment of others, yeah, you should have some sort of reasoning and not just a "I don't like what they've done".