You're allowed to kick anybody for any reason (personal/bias/having a bad hair day etc), but the question is more how often will it get through, before your team mates will either kick you for spamming the removal button, or declare you as sheer insane. Always need to keep that in mind, also it's a leveling dungeon even with these slots equipped, you are not going to have the pugilist doing extreme dps, or anybody for that matter but I can see why it would irk someone. But back to the question, if you feel for whatever reason you'll like to kick someone, go ahead and hope your party agrees or doesn't read the little pop up.
Or you could be old school and ask why the person is missing there pants, just make sure you phrase it right, don't want to get reported for sexual harassment. This by the way wouldn't surprise me anymore with the current players but let's move on, there have been plenty of times I forgot to equip something, because i switched from high level to low level, df pop'd and well I just forgot. But someone pointing it out made me equip it as well as got my com for being helpful and mature about it.
Guess you've to figure out what way you would like to go.
