Switching to AAB would mean 0.4% savings for my own app. Which already is only 3.4MB large. I really don't understand why Google is trying to force me into thi

Switching to AAB would mean 0.4% savings for my own app. Which already is only 3.4MB large. I really don't understand why Google is trying to force me into this (even for existing apps, every time you open the console it's just bombarding you with warnings that you don't use AAB). They could just add a sanity check, if less than 50kB are saved by switching to AAB, just don't recommend/force it. But they don't want that. Apps created after august won't even let you download the signing key so you could sign non-play store apks yourself. The only way this makes sense is if they want to prevent off-playstore distribution and verification entirely.