No?
Respawn waves are the only reason objective progress can ever be made in 12v12 TF2. They force players to come in groups, even when they aren’t intentionally grouping up.
Respawn waves are great and have been sorely needed in Overwatch for years. They would probably even make 2cp workable.
They’re sorely needed in Push, as people mainly complain about that mode because they’re incapable of grouping up after a lost fight. This will force them to do just that.