TLDR : This is a rebranding of Flash into Animate CC. A bit confusing since another product is called Edge Animate CC. Or will they merge both products ?
Flash has been capable of exporting html animations for quite some time now, so I can't say this is unexpected. This seems like a large step in deprecating the Flash name and player in general.
(Who knows, maybe Animate CC will be Edge Animate more-or-less.)