Bumping, probably didn't get much replies since not much DM DUEL players on the forums but would like to hear others' opinions on this suggestion since I think it is a worthwhile topic. Will close after a while if no interest though.
Personally, I can see both sides to this. On one hand DM DUEL is very condusive to spawncamping and as I see it if your team is getting spawncamped than it's your team's fault not the enemies'. On the contrary, I don't recall there is any spawn protection such as 5 seconds of Über or something like that, so the enemy team may just be able to instakill people right as they spawn which is kind of BS.