spawn kills exploit in gauntlet / circuit

I've been in a gauntlet match and was on the final round.

Last round : circuit.

I realised the oposite team played stricly from 1 specific spot, ignoring the objectives.

Soon enough my team and I found ourselves stuck on a ''solid spawn point'' where the oposite team could ''spawn kill''. I doubt there is any other way to describe it...

The opposite team could abuse this until the timer runs out. My guess, farming achievements. There are tournaments out there as well who give points only by the kills an individual gets during a gauntlet match. So, another frustration on that, but I sent them the same report claiming this unjust game exploit as well as the players who are in the tournament.