I think thats a great move.
I hadnt considered the points that bleonard and renderwiz brought up, but since reading their responses, its been stewing in my head... Because we place the RFA's, but we also use them just in Revit (in Realistic mode) for some exports. And for those, all of our current RPC work great. If it meant having to have an entirely different library for that, it would be a bit of a hardship.
The good news is: If we (my group) had to just stay on Enscape 2.7 long term, that would be sufficient.
We love Enscape, and we love Archvision... But both are ancillary to our main processes. Which means its more important they not create hiccups or hardships in our workflows. TBH, the moment this whole "situation" started, we had to start considering replacements for both tools, because... we just dont have time for this sort of stuff.