Well, I am sure there is probably some reasoning behind that opinion.
I know one fellow who had a Browning self destruct (the locking lug in the frame and the lug off of the barrel). He shot a LOT! And that is one fellow out of several dozen I know who also shoot a good bit.
I don't shoot a Browning as much as I do a 1911 but I know my son puts almost 500 rounds a week through my Isareli contract FN when he is home and I have shot it probably 10K myself...no wear yet.
I have had Brownings converted to .41 AE (the slide really zings on that number) and .356 TSW. Havent broken one of those either...but who knows, maybe tomorrow ???
At the same time Glocks last a long time. Cor-Bon just retired one with 400,000 rounds thorugh it. I know several that have been shot in excess of 100K. They will stand up pretty well (except for the 26,27, 30 and the short .357 Sig whatever that is).
Still I have seen Glock with cracked slides, wallowed out frames where the locking block sits, broken small parts etc.
Everything can break. Glocks are fine guns...so are Brownings.
Perhaps the Glock will outlast the Browning...but then there is something to be said for class
Onward,
Jim
PS, I carry a Glock more often than I carry a Browning for a backup gun so there is no prejudice here...no class either :-[