I'll disagree, Denis. This is NOT a matter of different expectations, this is simply a matter of reasonable manufacturing materials selection for this firearm's intended use, as you've stated it.
If (either company's) design criteria includes a high probability of failure in a critical part after one or two- instances of highly-probable behavior, then their criteria needs to be reviewed.
That's what happened with my Kel-Tec.
I have no argument over (projected) life, plastic parts, etc., etc. in a pistol like this. It's the inappropriate selection of materials here (and the related cost issues, I suspect) that impinges on both the effective usage and the manufacturer's reputation.
So, hopefully, the LCP has an improved release--one made of more-durable material--that would hold for perhaps six misapplied insertions, if not more.