FWIW.. I had a Bowden cable fail one time.The sheath pulled out of the crimped connection. I was taking a kid for an airplane ride in Mouser. When I started to reduce power to land, that didn't happen. I told the kid, "see those two switches on the panel?" "Yes." When I tell you, push both of them down. Can you do that?" "Sure."
He did that, things went quiet, and we made a normal landing. After that, when I see Bowden cables on primary controls, I pass.