Yep.Honestly I wouldn't worry about it.
It's a simple case of being "good" but not super. He's not going to go from good to super in 3 weeks. I think the base was just not enough for that. Not enough racing, 400 days without that extreme high effort stuff from races... that was a little too long.
I think this Tour will be a big help in getting back to his old self. I don't worry at all. In fact I think it's quite encouraging that others are getting worse (uran, yates, etc) while he is staying on the same level. Shows good recovery
Is he going to the Vuelta? Wonder if he could compete there. The thing is that there are others who failed in the Tour and will likely go to the Vuelta with GC ambitions, but didn't go as deep compared to him.