Well, I can't go over to their houses and personally verify the failure, but I can't imagine why they'd go through the trouble to lie to us. It was roughly four people who chimed in (really, not that horrible a number, to be fair) to some vigorous Strider versus Manix discussion, I believe, saying that their locks had failed. No company is perfect, the only thing that was significantly surprising was that one guy had two manixes and one chinook, all of which, according to him, failed a reasonable spine whack.
There are a lot of spyderco fans out here, and I'm one of them, so try and understand that my bias isn't against spyderco. I just have radically different opinion about two different major locks people use (lockback and liner lock) as my liner locks are definitely nigh invincible, and I do test, and I've had a lockback fail on me--which was a cheap, small name one, to be fair. I had not suspected a Spydero lockback would fail, and in fact, these instances would NOT keep me from buying a Spyderco lockback--I very nearly bought a Centofante instead of my paramilitary only two weeks ago (and still want one, so send your Centofantes to me--PM and I'll get my address!

)
Even the axis lock isn't as invincible as we've come to believe.
But I still believe the axis lock is far superior here, and that is relevent to the discussion. I believe it is stronger, cheaper, more reliable, more fun, faster to open and faster to close than almost anything out there, except for maybe a compression lock, but I'd probably still give it to the axis.
The Manix is a cool knife, and I personally really like how it looks, but I chose not to buy one for EDC because--well, I didn't want to lug that around. I hardly notice minigrips and grips in my pocket (and I've used both), although both had D2 steel instead of S30V, but I don't think that will affect it.
And again, I personally don't like lockbacks very much (least favorite), whereas as I do love axis locks (most favorite).
But there is a solution: the paramilitary. It's not as if I couldn't have bought either of these, but the right knife for me was the para, and I think it could be here too.