I think the MIM vs stamped or forged parts could potentially be an issue. The biggest issue to me is still that striker safety block design. Integral to the striker assembly, tiny and fragile part with a tiny and fragile spring. Ultimately, this is the part whose failure is causing the problem, if these UDs are happening. Unless that part fails, the striker won't impact the primer on a chamber case, right?
This means the fix is a standard plunger style striker block, like what is used in the 365. Probably a redesigned sear, too, while we're at it. Then a cast or forged FCU. Sure.....gun is gonna cost more. But it won't possibly try to kill you because it's possessed.
Throw in a trigger dingus, since we're going all in.