Thanks for that. I now better appreciate what you and Didier were up against, and as @TIG has pointed out, your plugins are the only game in town and better than a sharp stick in the eye (a paraphrase).
Personally, I could dispense with associativity if a somewhat proper angular dimension could even be created at all, especially (but not necessarily) if it were possible to edit the dimension manually so it wouldn’t have to be deleted and recreated when the design changes.
Actually, there is (in ASME Y14.5) a form of angular dimension (used for limited-space applications) wherein the dimension itself is on a leader that comes off the midpoint of an angular dimension line (arc with arrowheads), although it would be pretty creepy if that were the only form of “legal” angular dimension available. Not as creepy, of course, as the present situation.