I really can’t comment on Mopar water pumps. I can comment on water pumps in general, though.
I worked at auto parts stores in school and still have the 1971 Cutlass from back then (bought it in 1989). I have replaced the water pump with aftermarket rebuilt and had no issues
I replaced the water pump in the Jeep with a new Gates pump in 2019 and haven’t had any issues.
This is just my experience. There may be people with worse experiences and have gone through multiple aftermarket pumps, but I haven’t read about that on this forum or the old car forums for my Cutlass.