I agree but I have seen many more cases of leaking hoses that the diver may not be aware of. A) Their buddy should have been there to make them aware and B) they should still check their spg, but if they are used to their air consumption being x at a certain depth they may not be paying the attention they should if there is a leaking connection.
I don't know about 14mm hood with earplugs, but on warm-water reef dives you gotta be deaf to not hear a leak that will affect your gas mileage that much. I had leaking SPG spools and leaking o-rings that I chose to ignore, I may have surfaced with 400 psi instead of 500 once or twice.