This measure is about making it harder to pull off a specific type of scam that is plaguing South East Asia. No conspiracy.
For actual information on the purpose of this change rather than conspiracies, I refer you to https://android-developers.googleblog.com/2026/03/android-de...
Since the victims of these scams do not typically own a traditional computer/cannot be pressured to get to one quickly, ADB will remain a thing.