As Guillaume mentioned, there is a specific forum for this kind of topics.
So to summarize:
- yes, Substance Alchemist is still in beta (thus not officially released yet)
- the beta is open to subscribers, students, and people who applied to the beta.
- This decision has been taken a long time ago (way before we joined Adobe), as the sub contains the full offer: we may want to discuss this on the right forum (there are already some posts about it if I am not wrong, in case you want to double check what has already been said
Thanks guys.