This is why I like the scene referred way over the basecurve these days.
In the dark days of Lightroom having its panomerge feature you had to bake in your edits before the merge or else you’d lose access to the camera styles (I don’t remember what the exact term was, but it is where Adobe kept their version of basecurve for “Camera Neutral” or “Camera Landscape” settings) and a few other ACR gubbins. Fimic doesn’t care, linear data be linear data. TIFF, RAW, etc. Things may have changed in the time since I last used Adobe but that always annoyed me that you had to bake in your RAW conversion before the final pano product.
Edit: scene referred gives you more flexibility is the crux of what I’m getting at here, at least in how these tools have been designed so far. My guess is Adobe isn’t overly worried about interoperability with other tools as much.