Shaw's injury granted him one last chance as we won't be able to move him on this summer.
Blessing in disguise for him?
No fecking way mate. If anything it would have convinced Mourinho that he can't rely on him and that he needs to keep Darmian who's at least reliable while also aiming to sign a top LB. And if both of these things happen, then Shaw has 0 chance of playing in any meaningful matches next season. At least if he was fit he could have got a transfer elsewhere and played football. But now he's more likely to have to spend a year sitting on the outside looking in.
No way is that good for him in any way.