You've... never experienced or even heard of a problem with a light? I've had three head/position lights fail on different cars I've owned. Sorry, that's straight up ridiculous. These are comparatively fragile things and routine repairs for everyone.

Or you're saying you've never heard of that specific, particular failure mode? Well... OK then! But needless to say that proves nothing.

Compare: I bought a Saturn 25 years ago with an aftermarket sunroof that had been a floor display car that they probably didn't intend to sell. And it turned out no one had sealed the roof, and the first time it rained it leaked all over everything. Ergo, you should never buy an aftermarket sunroof. I've never even heard of that failing on another car!