Tired or stoned, I was never sure.
I've never done a show at this level where anyone was 'stoned' or drunk. You just wouldn't keep your job, you'd be out the door the next morning.
Even if they had a birthday party the night before, they would be recovered.
The suggestion this was the second or third time playing the show and it was late at night is plausible.
The whole set up is also fake - a live studio session with middle aged people standing, not dancing, not reacting with unbounded joy. That sucks the energy out right there.
Four years earlier, in the gaps between chorus and verses of Romeo and Juliet the crowds cheered loudly. In this show there is absolute silence.
Moreover, a fish rots from the head down. Mark looks pissed off, doesn't want to be there. Eyes half closed, not a hint of a smile. Reminds me of times on OES tour. He looks unbelievably uncomfortable playing MFN, no joy or energy. Says to me "why are we playing this song"?
I'm not an expert on this period, but the band are all good players and seem to be playing well. It's just a combination of the fake 'live show' set up in a small studio with an overly conservative audience, plus Mark looking like he's not interested, doesn't want to be there.