I don't understand why the devs are adamant that servers are the way to go

pretty much every mainline game I've played in the past 10 years has been peer to peer, including the ones with really good rollback netcode like SF6, Tekken 8, ect. I just don't get why the devs feel like they need to stick with these very inconsistent servers especially since Dan said every time someone queues it costs them money, it just seems like a waste of money for them and a potential headache for us, especially being an indie game I feel like in the longrun servers will hurt them.