It seems likely that Warner Bros Discovery decided to cancel the Boomerang streaming service to further consolidate its revenue channels, but there’s also a chance that there weren’t enough subscribers to justify keeping the platform running.
The company hasn’t been shy about cutting costs, canceling numerous TV shows and even the Batgirl movie not too long ago. In any case, if you want to watch all of this content, it seems like Max is going to be your best option going forward.