I'm sorry but he specifically mentioned training extra with his TT bike. he was aiming for it.
Maybe the parcours once seen in person was not as tough as initially led on. But this was a goal.
Not THE goal, but a goal. It's okay. For Pogacar this TT ain't that important, especially with the RR coming up.
But let's not pretend he did not want to win here.
For Pogacar, training for one day in TT bike after Tour de France is an extra

.After the Tour, he never rides that bike. This time, he did it for a week. That's the extra training:
one week
Very little, but for him, a lot, because once the Tour de France is over, in other years, he hasn't even ridden that bike.
What he said is true, he trained extra on the bike, because one week is an extra for him, for another no. Now, you have to assess whether a week is extra enough. It isn't, as some of us here have already said. It was ridiculous training. He didn't have any time because the Tour exhausted him and he had to go to Canada.
He only dedicated a few days of a week. Not even the whole week, because if you look at his Strava, you'll see he's done more 200km trainnings than time trials. And could also say he didn't train much for road races. He returned to training very late.