It seems clear to me that if we substitute the name "Talley" with anyone that went mirrorless with SONY, the same would be true.
ie: I don't see the R system pulling many SONY shooters back to Canon.
I do see the R system and many of it's inherent advantages selling to current Canon shooters, and slowing the trend of moving to SONY.
I agree. The R is a fair camera, but not appealing to me (owning Canon EF and Sony FE right now)
The main thing is that the RF lenses suggest Canon is not thinking of releases that will support small and light FF kit. That’s one thing that prompted me to pick up an FE system. RF looks more like big, fast, no compromise.....like Sigma Art.
Other reasons I see the RF not pulling in Sony gen 3 users:
Burst rate without caveat (3 fps)
Video feature set
Dual card slots (for those who need them)