I know its weird but its not just Lindsey. This is fairly the norm these days unless maybe you are AC DC or something.
The guy who sits far in the back in Lindsey shows sits right in front of this computer. Lord knows how much is pre-recorded. Lindsey is still live though. No faking with his guitar or lead vocals. The only fake vocals I saw was during Hold Me on the Buck/Vie tour. The "come on and" vocals were clearly fake.
Much of Lindsey's early solo work especially on Go Insane is computerized so I would think none of this should be a surprise. I never liked this computer stuff. My favorite Lindsey songs are him playing his guitar and rocking out. As he says, he is a painter and these pre-recorded tracks are just another layer to his performance