To be honest, I think this might be due to him taking it easy on the physical movement side of the gig
I wholeheartedly agree.
I can't say I do. Didn't we just go though a bunch of '93 gigs where his movement heatmap would peak at drum riser or central mic stand? What you two are saying is logical and true - The Talisman En Vivo, probably the best officially released example. It's not only the voice at that Rome gig, it's the smile on his face and his willingness to interact with the band on stage while he's not singing - the actual opposite of what he did on that tour..
Harris and Murray don't fancy his newly found enthusiasm for the band.