Turnover Vocal Quality Live

I just bought my tickets for the Roundhouse in September and went straight to YouTube to watch some recent live stuff. I can't seem to find anything in the last 2 or 3 years where he isn't singing consistently out of tune and struggling during shows. Yet I see zero comments addressing this. Has anyone else noticed this or am I completely wrong? Not being eggy for the sake of it just genuinely interested to hear peoples opinions. I'm a guitarist/vocalist myself and have had the odd dodgey gig where I've overused my voice the previous few days or whatever but it's every clip I see of him. Peace and love.