Is the down time after getting eliminated early in a round.
One of the Reason certain maps suck more then others is because rounds simply last too long and if you get knocked out early all you can do is throw Fish/Cakes, bananas, or bombs to help your team and its just not fun 95% of the time. We'd all rather be throwing punches not fish.
The reason Maps like Gator Falls and Broken Arrow Suck is because you can be instantly (& randomly) eliminated and have to wait for the next round to play again. Thankfully the rounds are relatively fast but being knocked out so quickly still isn't fun. Maps like Winter is Coming and Typhoon are on the other end of the spectrum. Rounds on this mode can last AGES, and if you die early you're going to be waiting a while before you get back into the game and it just feels so bad. This is an issue on all maps though, Ichiban, Blackhole Lab, Wind Tunnel, Ice Breaker & Broken Bridge as well but is more apparent on the others.
This is an issue that I'm not sure how they could solve without completely changing the dynamic of the game. What we need is a way to play the game, outside of just throwing items but I'm not sure how to do that without ruining what makes Battle maps fun.