The default setting could be that PC messages are ignored, but the ability to send PCs to effects when necessary is real important for me.R
Yes, for me it would be good, to!
Use case: You want to change presets on a multi fx e.g. Overloud TH2 or Vintage Keyboards FX, Guitar Rack, whatever. You cannot work around the limitation by using this fx as an instrument if you need to route audio from another instrument (e.g. Kontakt).
Workaround currently available: Routing audio out of forte on a (virtual) mixer (e.g. RME) and into forte again through an audio input. Now you can insert the multi fx as an instrument that accepts PC messages, BUT you get double latency and complicated routing.