With the inflated ticket prices, people have inflated expectations.
It should be noted that Steve is much more than a stage hand. He's toured with the band for quite some time. In 2009, he was even introduced alongside other band members...
https://www.youtube.com/watch?v=RkwTtiorhEg
Steve is clearly visible in Say You Love me...
https://www.youtube.com/watch?v=Xubf1zQopNw
As mentioned above, why couldn't Lindsey have performed an acoustical version of Go Insane? Seems like they gave up too easily.