When the advice is given in a friendly tone and it is clear that it is just that, advice, I don't think I have ever seen someone react negatively to it. They may go back to doing what they're used to ten seconds later, but that's understandable as forming a new habit takes time.

There's also a big difference between telling someone how they should play, shoving an unasked-for opinion in their face, and telling them which form of play is better, giving them advice based on objective fact. If it's the latter and the recipient's refusal to adapt causes the group to suffer, then their removal seems reasonable to me. If it was a single player game then certainly, I'm not going to follow you around Eorzea critiquing your Heavy Thrust uptime as you fight Spriggans, but if your success and mine are interlinked and you're tossing away both of our time then I'm going to ask you to find another group that wants to play as you do, while I find someone who wants to play as I do.