Yes. I don't buy that their are scenarios that can't be tested in QC for the motor production. It should not really be an issue to put the motor through the full range of possible power and resistance loading that it is designed to encounter and ensure no failures. I'm not saying that would prevent every motor manufactured from failing prematurely, but it should be a rare occurrence.
Having said that, I will cut them a little slack simply because we don't know how many motors they manufacture, and of those how many have had premature failures. We only hear anecdotal statements and only the ones that are negative. So it's impossible to truly judge how often it occurs.
But if it happened to me, I'd be here complaining about poor build quality and needing better QC too. I'm a hypocrite. But an honest one.