From his point of view, he has no reason to worry about pressing. If he was asked to describe his picture perfect football match, it would be something like this:
Push everybody but 2 CB's forward towards the opponent's own half to put them on back foot. Force them to get behind the ball with 10 men. Basically besiege and entrap them inside their own box. Take the initiative from the beginning and never give it away for 90 minutes.
If this brand of football is actually obtainable and sustainable, there is indeed no need to consider pressing a coordinated team effort that needs to be worked on. Just focus on your attacking patterns and movement, assert yourself over the opposition, and the need to press would disappear by default. Because even when you lose the ball, it would happen in a circumstance where opposition is so far deep into their own half, with so little men in front, that they'd almost instantly give the ball back without any special effort on your part.
That's obviously not how it works in reality though. We routinely lose the ball in midfield, or even inside our own half trying to play out from the back. They can play out from the back themselves, putting us on backfoot. It's not necessarily players' fault. Even a well coordinated team press is not immune to getting beaten on occasions.
It seems that his only response to all these aforementioned possibilities is to shrug his shoulders and double down. His ideas are perfect, but his players are letting him down because they're not errorproof. If only they were.