Adrian "admitting" that he doesn't know how to play like that any more is just probably a bit of self-depreciating humour and a way to brush aside the likely annoying questions about why X song isn't being played on Y tour.
The band is comprised of professional musicians, and as you said this means that you play music for a living and is no indicator of skill. Professional musicians. It's their job. If the boss, Steve, says "Hey we are going to put ATG into the next set list", do you really think that they don't have the skill to do their job and re-learn a song that 15 year olds post covers of on YouTube? They are technically competent enough to play their own material, it's only a question of practice and rehearsal.
I'm curious, do you play any instruments? You can't forget how to play guitar a certain way, that's not how the skill works. It's already been composed, as I said above it's a matter of sitting down and practicing -- you know, being a professional about it. There is nothing out of the ordinary or ultra advanced about Adrian's pre-solo or solo in ATG. That's not a criticism, it's a fact. It's a great passage of music but it's hardly anything beyond what he is presently capable of. If anything, Adrian is the guitarist who has pushed and advanced his craft over the years further than the others and thus has greater technical capabilities than when the album was recorded.
Yes, sometimes Bruce doesn't sing well. Sometimes Nicko fucks up timing. Sometimes Janick's improvised solos don't work. It's live music. Shit happens. Your point?
I don't think that anyone here would say that Nicko has shown any signs of being unfit to play. Your point?
People whine about pacing, people whine about set lists, people whine about monkeys and bananas and vocal samples and an endless number of ridiculous things. In my opinion the slower tempo didn't detract from either song mentioned.
You believe that the band isn't capable of playing every song in their entire back catalogue, and that's fine, but in my opinion it's more of a matter of they just don't want to play certain songs, as opposed to them being incapable of it. If they wanted to, they would practice, rehearse then perform any track in their history if called on to do so and there has never been any evidence to support that they aren't skilled enough to pull it off -- even if it's at a different tempo or bits here and there aren't as recorded.
If I recall correctly, Nicko was deadly serious...
Even Adrian, himself, admitted that he has just plain forgotten how to actually play guitar like that...
Professional means you make a living from playing; nothing about skill is implied by this.
There's also a ton of examples of him just not singing very well.
Being unfit to play or dead might be a problem though.
People whine about pacing all the time; what cupboard have you been living in?
It's what Bruce & Steve agree, yes.
Some people don't believe.