Players being able to shoot moneyball down without bots

Some people that i've been playing with will go to the other teams base, get to the high ground above the moneyball and just constantly shoot at it until the shields go down. This causes them to be able to win almost every round in around 3 minutes.

I don't really think it's that overpowered or anything, I just think that it takes away from what the game is all about: pushing your bots up to the enemy base. Being able to find a good spot and just constantly shooting the moneyball till you win just takes away from that. Also I don't think it makes sense that the pit girl tells you to not shoot at the shields when the shields are able to be shot down (although it takes a while). I don't know if this is a glitch or on by design but either way I wanted to know if you guys think about it and if it's a glitch for it to be fixed.