Thanks for the post.
Activity Diagrams have not been discussed much among the users that I regularly work with. However, there may be development that I have no visibility to.
Since most of the long-time BridgePoint development shops are not using the Activity Diagrams in Papyrus-xtUML (BridgePoint), there is discussion of deprecating the BP version in favor of native Papyrus Activity Diagrams as part of the BP merge with the Papyrus Platform.
What do you think?
P.S. For engineers wanting to add functionality such as this start here: https://xtuml.org/participate/developers/