Without wanting to put a negative slant on a good performance, and it is good, it's vacuous without Morrissey's vocals. Those lyrics are meant for Moz's voice and none other.
The meaning that brought those lyrics alive - Marr doesn't convey it - he sings it, yes, but there's no haunted/desperate vocal. I don't think I'd go and see Marr live, not if he's singing Smiths songs - it's simply not the same.
I'm confused as to what johnny Marr thinks he can achieve by basically *covering* Morrissey. That sounds harsh but that's what he's doing. By all means, the guitar parts and the melodies are as much his as anyone else's, but he can't touch Morrissey vocally and it's disappointing to see him try.