How did Blizzard handle the TBC and Wotlk launches without layering?

They dismissed the question “Will layering affect world bosses” by saying “Of course not, it’ll be gone before Phase 2”.

Ion also promised it would be gone within a couple of weeks. That’s about as transparent as you can get without signing up to a fixed date that people can rail against.

If you fail to plan, you’re planning to fail. Layering is inherently safe for a low initial population, because it will collapse into a single layer if there aren’t enough people online.

It’s literally built to work in good and bad the best way.