I'll explain to them why I won't do a speedrun, and if they don't understand, they'll have to deal with it or make a team with additionnal requirement. But, on the other hand, if I want a speedrun and the party won't handle it because of the tank or the healer (depending of the job I queued with), I'll either leave or deal with a slow run.
No, it's a violation of valid kick reason, that SE just don't want to investigate. If they ever add "Different Playstyle" in the kick window, I'll tak the kick without an issue...but it's the same as blatantly saying "kick all you wan't, we won't monitor it"