I was there the day Leshma played DTV for the first time, and I recall he had a good time. It's the friendly atmosphere and the easy game-mode that attract many players, like myself.
If there ever are rows, they're mostly due to griefers and/or newbies who can't behave, but it's rare. If I got mad every time I was team-hit, I would have to kill myself (or a lot of people).
Regarding the OP, I don't like any of the suggestions. DTV is fine as it is, despite the fact that bots hit through each other and sometimes clip through your body (although this happens in "PvP" as well).
Oh! And don't forget to vote here!
http://forum.meleegaming.com/suggestions-corner/remove-certain-dtv-maps/