All changes will go there anyway, way fewer people play PTR and thus there is less chance of finding bugs and most stability issues are discovered in the first week. Two weeks should be more than enough for testing, 3 weeks make sense when a patch is really unstable, and 4 is just a bit too long.
This patch specifically, should never go live.
They’re likely watching the server interactions and squashing problems before they go live. With a significant more amount of people triggering them a small unhandled exception that doesn’t break the game can turn fatal quickly.
Can they just buff his life steal to 100% please?