Which was a problem, but it was a backup in case of a leak that broke, it had 0 effect and it was a cargo mission not a people mission. Starliner's failure today did have a significant mission effect and had people.

SpaceX had a bunch of rocket landing failures on real missions, but that didn't matter because landing was a bonus, basically nobody had done that before and everything was just fine if a rocket blew up trying to land.

SpaceX has also done a bunch of test launches with new vehicles, this also doesn't matter if they fail, they're specifically launched to find failures instead of expending tons of engineering effort which is more expensive than blowing up test rockets.

Those things are quite separate from "there's people on board and several thrusters broke requiring unexpected manual pilot intervention", this was not expecting or allowing for failure by design but a serious anomaly that has to be researched how the problems weren't caught in human certification.