Agreed. In that, Dragon is a better design overall. At least they can see what went wrong with the propulsion pods after the craft lands. To do that for Starliner would require an EVA and do things to the craft it was definitely not designed to do.
If a faulty pod could be detached, the sane EVA would be to close the docking hatch, depressurise the capsule, open its side hatch, detach the pod and put it inside the capsule in a way it wouldn't bang on everything (it'd still contaminate everything with its remaining propellants), close the hatch and let it come back to Earth with the remaining functioning propulsion pods.
If a faulty pod could be detached, the sane EVA would be to close the docking hatch, depressurise the capsule, open its side hatch, detach the pod and put it inside the capsule in a way it wouldn't bang on everything (it'd still contaminate everything with its remaining propellants), close the hatch and let it come back to Earth with the remaining functioning propulsion pods.
Quite an adventure.