I think people in general were a little hard on the band for technical things. Yeah, they weren’t quite together in the break after the first chorus (watch Neil pause completely and watch, as if thinking “I better stay out of this and not make it more messy”). The main vocal trio weren’t perfectly in tune and it wasn’t mixed well. But, I agree that for a first performance of a new lineup it’s pretty tight.
I do think criticism is more warranted for the overall vibe. It did seem plodding at times and lacked intensity. None of which is Neil’s fault...he sang very well. It’s that mysterious question of chemistry. They’re still finding each other and while it wasn’t bad, even for a first performance I could have been more convinced on the chemistry front.