the main reason why bttt is always dead is because
a) they have to play as a team ( thus lose/win based on team skill or lack of such skill) aka skill stacking where high skill players stack to 1 team and shrek everyone
no gamemode out there REQURES teamwork on a constant basis other then this gamemode(thus it causes fustration or rage quiting that then results in more rage quiting and or entire teams leaveing)
b) haveing a average team lose rate of over 50 -75% (depending on howmany teams are used (typicaly only 2 so 50%)
c) falling behind makes the feeling of loss or 100% chance of loseing thus leaveing as the earnings from doing something thats tidious or dificult to do with randoms eg crane levels in puzzle maps with out the laughing about the a-z failure of everyone involved.
d)