Because it's the social network that's generating hockey-stick growth, not whatever boring technology enables it. The alternate universe Clubhouse whose develop

Because it's the social network that's generating hockey-stick growth, not whatever boring technology enables it. The alternate universe Clubhouse whose developers decided to build their own audio stream multiplexing technology first is still working on it while the actual Clubhouse is rapidly grabbing market share and securing their position. It might make sense for them to acquire their infrastructure providers or clone their technology in-house, but only later when they have the money to actually do that.