Can't see the vid as sky sports is region blocked but I'm guessing I've seen the actual interview.
The set pieces question has been running for weeks (much longer than that in truth) and I think that if anyone thinks he's not aware of it and/or not really doing things behind the scenes to address it then I think that'd be a bit of a naive viewpoint. The answer he gave in one video I saw was nuanced and not dismissive as it was taken and reported on. There was another that was sarcastic and facetious after question after mundane question...all part of the circus.
To assume he's been found out I feel is about as short sighted as it might have been to think that he would be gone in 6 months, even given Spurs a bit Watford-y when it comes to keeping managers. Same at Celtic, again he chose when he moved on.
He's not a character that will have his job dictated to him by pundit and commentators, and he's certainly not dozy to let this narrative perpetuate either, as much as the bs might annoy him. He's been around the block a few times.
Levy seems to have bought in, and Arteta by comparison was given 18 months of fans wanting his head and turned it around from a considerably worse position, one they'd not been in in nearly 30 years. Are Spurs fans as fickle I wonder.