Mim parts....ehhhhh
If they were offering a high end reproduction of the original 1918 Remington M1911, then maybe you'd expect to get all forged, milled steel. But, they're offering a basic mid-level 1911 and Mim can keep the costs down.
I've got a Kimber with a serial number starting with two zeroes followed by four digits - early, and I know it has Mim parts and I've put thousands and thousands of rounds through it with no breakage. Would I prefer the Mim parts were forged steel? Yes. Am I willing to pay to have the Mim parts replaced - absolutely not! I've got better things to do with my money.
I'm a 1911 guy. I love them. I'd prefer no Mim, but in a basic shooter, who cares? Mim has proven functional and reliable and less expensive, so put the money saved into ammo.