[Larrikin]

As an Android engineer, I'm not sure what you're talking about. There was a push to get people to move to the new permission model, but I believe that's still optional so long as you're willing to suffer with old SDKs

[Avamander]

They're making it mandatory to constantly bump your targetSDK.

They're adding new requirements one has to follow in order to get access to certain permissions.

They're updating their content rules which make anything with user content very very difficult and might just kill your app one day.

They're updating graphics and icon requirements rather often.

It's a rather big amount of work if your app isn't super simple and relies on functionality they change.