A lot of people made the choice to use proprietary tools for their creative work flow, rather than making do with and pushing for better open source equivalents.

I have some sympathy for them - I am sure they felt it was the only real choice at the time - but not a whole lot.

If you follow their mea culpa link, it says they're keeping (a type of) support.

> Adobe Animate is in maintenance mode for all customers...

> Maintenance mode means we will continue to support the application and provide ongoing security and bug fixes, but we are no longer adding new features.

Of course, in my experience, such a lifeline never lasts much longer than the furor that earned it...