Nerfing SkyBilly goes against many things that have helped DbD grow.
I'll explain: when DbD was first conceptualized, it was meant to be a "hide & seek" style of game where survivors were meant to skulk around, do gens and survive. This has changed profoundly. Dead by Daylight is a very complicated game of tag. Looping was never intended, however it has been embraced by the design team because players enjoyed this MORE than the intended design.
SkyBilly was unintended by the design team, but the community universally loves it. Survivors love watching it, Billy mains love finding new spots. It is a harmless, benign artifact that the development team should embrace instead. It lead to absolutely no advantage for the killer. Any Billy who got on top of a generator and 4k'd DID NOT need to get on top of the generator to do that.
I am excited for the anniversary changes, but it is completely overshadowed by my absolute contempt for BHVR's decision to nerf something so fun and endearing. The fact that resources were allocated to fixing this when we still have rubber-banding in the PTB is absurd. Who was this hurting? Who wanted this change? This needs to be reverted.