The primary benefit of the PR wouldn't be with the fanbase; the point is showing prospective Flyers that management will have their back, and go to extreme lengths to take care of them. (Whether that's true in all cases, who the F knows, we do have our fair share of stories where we crammed someone under a bus when it suited management's narrative, but that's the story they're selling.)
Don't think that would have much of an impact either.
Simplest explanation is they really liked him off his 2021 season:
KHL 26g .919, POs, 22g .937, Int'l 15g .943
Year in exile, then last season 44g .914, PO 5g .916
So they may have figured he was working his way back to pre-exile shape and would be a good candidate to be a NHL backup.
Best move would be to send him to LHV to play every day and have Dilly work on his mechanics.