What is food for thought is the Generations material live was taken from the studio recordings, now if he cannot even do that stuff his career is surely over from a live perspective.

Not necessarily. Augeri really never sang his own Journey songs that well.
I used to speculate on whether or not Neal and Jon just wrote songs pretending Perry was still in the band.
In fact, my open challenge still stands; I'm waiting for someone, ANYONE, from here to throw up a live cut of Higher Place that sounds remotely good.
A tour de force vocal like "Faith in the Heartland", where the vocal is even more stratospherically high-pitched than Arrival, would've been hard for Augeri to pull off nightly even if he was in his peak. I imagine he would've been ducking notes like mad.
For all u two-ton, gizzard-necked, cloven-hoofed Augeri idolaters out there reaching for your high blood pressure medication as u read this, all i can say is you know I'm right.
And if you don't, you're not nearly as devout a fan as you think you are.