But that is exactly what I said!

An "ecosystem", whatever it is, is an argument for the user to use the already existing OS. There is absolutely no logical reason for the user to use an obscure new OS and then pretend it is the old, existing one. If you want (or "need") to use OS A's ecosystem, use OS A. Simples.

The only player who might benefit is the new OS's producer, by parasiting on the old one's "ecosystem" rather than doing it properly and building its own, thus luring the users who secretly like the existing OS but outwardly act like they are "progressive" by using "an alternative".

Which, if you listened carefully, you might have noticed, was exactly my point!