There have already been reported failures of the frame.
The one that I saw had the rail assembly split from the dust cover. Look where the rail joins the frame and it’s a sharp/squared angle that directs the stresses.
Such things are common when new weapons are developed, so they should be able to work it out.
The place in the frame where the slide stop/takedown lever passes through the frame is a bit of a weak spot, especially on alloy frames. That is right next to that sharp step.
I really question your comment about frame failure. If the gun is made properly, the chances of frame failure are non-existent. This isn’t a new gun, the 1911 has been around for over 100 years.
I’ve built dozens of 1911’s and have never had one fail, no matter the caliber. The .45 is considered a low pressure round compared to the 9mm and 10mm.
The only way I could see these guns fail is if they are running proof rounds through them.
Other than that, I’m calling BS on the matter.