Same reason the Google Play store used to be easy to sign up for and use as an app developer, and is now a complicated, ever-changing mess of legalese, consent forms, and strict requirements to prevent your app from being de-listed.

Big corporations can just have a person in charge of your online app store presence and lawyers to manage the legalese. Individuals or small groups are tolerated if they manage to complete the maze.

One of the more amusing things that's happened to my apps was that they were delisted because they used Google's own code that had been deemed insecure.