i think camping like that is against the rules, you should record and report them next time :)
and i agree some games take waayyyyyyy too long, a timer would be great, but maybe also depending on the map you're playing. when looking at Java, teaparty is one of (if not) the biggest map there is when looking at the total amount of players, these maps normally take longer then 10v10 maps.
this suggestion would be great for both platforms so +1 from me :)
I mean it makes sense but it wouldn't be fair for new players cuz if there was a time limit then new players won't learn much in that time, plus u must be the last man standing to win and having a time limit is just going to ruin the experience so I am going to say no for this. Sorry about that
it could become a tie in the end with a lower reward then winning for both teams. when it comes to new players, im pretty sure a long enough timer would do great things :) but the same could be said about rushing, it limits people from learning a gamemode (i've noticed this in TD and its awful)