Flash Pro != Flash Plugin
It's worth noting that Flash Professional/Animate is a content authoring tool and not the Flash Player browser plugin.
Granted, the browser plugin is likely exactly what comments here describe, however my recollection of the authoring tool was as a great graphics package with a powerful language that allowed for rapid prototyping and cross platform support. (in-application code editing was a pig, but there were some great editors available)
"Flash" is undeniably a dirty word, as can be seen from some of the comments, it's not surprising they've decided to phase it out.