As for not trying for the F#, that's what I'd call a smart decision and that's what I'd like him to go for more. Not risking with the bizarre arrangements of the past, but just focusing on singing good, clean, strong verses throughout. Getting a couple of crazy things in there would be nice. But not going for the full thing every time because, even if he claims he's in top vocal form now (haven't seen enough new bootlegs so I can't judge), it's top form 20 years and a different voice later.
Of course they're probably considering his voice when putting setlists together because, as it's been said many times before, he's the only one with an organic instrument. But if he is the one making decisions, and if it comes down to his yay or nay, like in "do you think you can pull off this verse so we can go with this arrangement", that still doesn't guarantee he won't end up with something he really can't sing now, or can't sing because it's pushed too far back in the setlist, because there's only a couple of steps from happy & confident & riding on the wings of recent success, as they are now, to being overconfident and overestimating one's abilities. But they're wise old men and they've been on this tour for quite a long while, so hopefully that won't happen.