Well after 11 years, I finally got around to replacing those "so-called" junk and often read about plastic OEM fuel line quick disconnects on my 2003 GS Adventure that I've owned since day-one.
Those who have replaced these know how tough they are to remove from the existing fuel lines. Pulling and twisting won't get them out and it took a lot of sideways force in the way of rocking to remove them.
Now if it took that much force to remove these 11-year-old fittings without them breaking, how is it that these things failed and crumbled in ones hands after a couple of years? Another Urban Legend on the web?