Most concerning to me is the lack of thorough testing, unlike Apollo. The June WDS was terminated early, which left this latest problem to be found on launch day. Even worse, the Orion capsule on this stack does not have the life support and other systems critical for the manned mission, so apparently they will get their first test with live astronauts aboard.
The prudent and safe thing to do would be to wait to test the entire stack in the manned flight configuration, but that would probably mean scrapping these solid boosters (they’re already six months past their designated lifetime, but NASA granted an extension), plus whatever other components might age out. With Boeing moving Starliner’s next launch back to February, '23, it seems some management issues are coming home to roost. The continued absence of BE-4 engines for ULA’s Vulcan rocket is another black eye.
Of course, an even more prudent and safe option would be to scrap the entire SLS boondoggle and hand the whole Artemis project to SpaceX.