Sure it might have mattered, he might have been a bit fresher today which could have mattered in the end.That didnt really matter in the end today when it was everyone for themselves.
I dont think Visma ever really expected Vinge to win the Tour given the injury. But of course they had some hope that maybe it could happen, which we now know it cant.
Everyone agreed that yesterday was really hard and Jumbo played a part in making it hard. Rembember that stage 12 was also hard and that was the day after the superhard stage 11. Given the team were a bit unsure how Vinge would recover due to lack of preperation, I think it was an unnecessary risk riding so hard yesterday, it was absurd to see Vinge on several occasions fighting by himself to get in right positions.
I'm not claiming anything as absurd that he would have followed Pog today if Jumbo LAB would have taken it more easy yesterday, but maybe he would have had slightly more power in the end.