I thought the same thing.
That would be a huge embarrassment for Boeing and their pals at NASA..................
It would be the ultimate embarrassment to have to be saved by SpaceX, in addition the current craft that is leaking would have to be cut loose to make room for the emergency craft, if the leaking craft burned up on reentry, that would a disaster they may not recover from.
I believe that NASA and Boeing are willing to sacrifice those two brave astronauts rather than turn to SpaceX for assistance.