I don’t hear a problem with his touch, player tone source seems fine. Sounds like a problem with the amp or possibly the mic got damaged somehow since it was last used. Doesn’t sound like mic placement or room either, something is broken in the signal chain. Could even the the mic pre? I don’t care for his playing but his touch sounds great, and it seems like he was going for more of a classic full hollow Jazz guitar sound, but something in the signal chain screwed up the transients. To my ear I’d even guess that if it was the amp or speaker that’s bad, he would have heard it in the room and played a bit different to fix it, so I’d bet on a post amp part of the chain as the location of the problem.