Can we please get rid of it? I honestly don't see a reason to keep it at all honestly. At most autospawn someone five seconds or so past the spawnwave, not immediately.
The only thing it does for me is mess up my merc selections, respawning me before I can chose one if you die with only a couple of seconds before the spawn timers. And sure, you can select a new merc before you die as well, but that usually just ends up shooting me in the foot when I change my mind and forget that I selected a different merc.
It's a small thing sure, but it annoys the hell out of me.