Warwick in the finale

Why didn’t Warwick die when Viktor and Jayce disappeared?

Last time Viktor “died” all his healed people ended up dying because his life force was no longer sustaining them or something.

If Warwick was healed/revived for the final battle, shouldn’t Viktor’s disappearance/death have killed Warwick as well? Viktor wasn’t healing his sanity and conscious like last time, based on all his markings it looked like Viktor healed him/revived him, though I could be wrong.

All those machine things Viktor made ended up “dying”/shutting down when he and Jayce left, so was Warwick brought back through non-Viktor means, or was he some special case that excluded him from dying?