I've been in a party that kicked someone for not having good enough gear, but in that particular instance there was literally no excuse. We were in akademia anyder and their entire left side aside from the weapon was scaevan gear. It took us forever to reach the first boss and the healer was having to focus on the tank alone even with single pulls. And the game literally gives you a free set of 80 gear.
So yeah, I didn't feel too bad about them getting kicked.