Not calling BS, but I have never seen that happen with a lot of weight on the bike, wet weather, or extremely long descents. Some of us just weigh a lot. I do remember thinking Cantis were the bomb back in the days when I weighed a hard 195, these days not so effective. And I like rim brakes.

I think the question on housings as with everything else is that at the low end the cost is trivial, so who wants squishy less effective housing? Show of hands for ineffective crap housing you probably paid more for, if you don't own pliers and do your own work. There is always some cheap ass in touring who if you ask them do they want to pay a buck extra for a better product will say they could fly to Hanoi and tour for a month on that buck. But for some of us I don't want to pay more to get a crappier product, shoot me.

And then, at the upper end, some people are spending what the average teenager at the local LBS pays for a downhill bike, 4K, and they aren't counting the pennies.