Xant, did the guy say: "Go ahead and TK me?"
I guess he didn't. But even if he did, teamkilling is against the rules. And since admins are there to enforce the rules, the kick was justified.
TK'ing isn't only forbidden when it's harmful to the team but always. And: people get annoyed when they get TK'd. Swift justice avoids flamefests. Mostly...
I actually quite like Lilith's admin style. Strictness goes with the job, and I like the way he (really? not a she?) goes about it. The only decision I saw that I found myself incapable of agreeing with is when Lilith kicked someone for kicking another player out of the way while being chased by enemies. The guy was TK'ed before by the same team mate who he kicked, but the TK'er got to stay. Highly questionable. But all in all, I didn't see anything I found disagreeable. Hence voted no.
Wookie, however, is another matter. As stated above, admins are there to enforce the rules, nothing more. Using your powers to switch maps because you do not like the current one is power abuse. Hence, voted yes.