Bootlicking? And I'm accused of being polarizing...
"Playing yes man" would be defending the bugs, ai shortcomings, and balance issues, and exploits that are obviously wrong with the game (but fixable). I don't see anyone doing that (certainly not me).
The thoughtful critic points out things that are wrong, and contrasts them with things that are done well. Then offers some suggestions for reasonable changes.
You seem to be engaged in a different enterprise. You want to stage some kind of grandiose boycott so, 10 years from now, Civ VI brings your precious civics back. You don't like the changes to social policies. That's fine. Perhaps you believe a Civ game should approximate government in a way that makes it easier for your Civ to change course rapidly. Many people disagree, and like the new social policies. That doesn't mean we therefore prefer a "dumbed down" game. I could muster several reasoned arguments for why I believe they are both more complex and fun in the game, and actually more reasonable approximations of real life governance. But what's the point? I will only be accused of being a dupe of Firaxis, or on the payroll of 2k, or an RPG console gamer in disguise sent to sap and undermine support for your "movement" on the forums...