Considering the thousands of Perazzis sold in the US since the late '60's the level of this "ongoing problem" is certainly questionable. Ribs come loose on all kinds of guns. BFD Perazzi barrels have as well been subjected to a high incidence of molestation and there has been no determination as to how that might affect other aspects as well.Get ready for a big bill.
This has been an ongoing problem with Perazzi's for years.
I've seen it done that way before, it worked well considering the alternatives.A tiny bit "Bubba" but Loctite Black Max does a great job. Be sure to degrease thoroughly, apply liberally, wipe off the excess with acetone and clamp. Not perfect but will hold up surprisingly well. Giacomo charges about $600 to reattach a rib and reblue as I recall. (and worth every penny)