The band, specially Mike believes that people come to the show to see them play their hits, they care A LOT about their average fans just look at their most recent set it's packed with singles where Chester was needed, there's no way that Mike can do that on his own, they need a powerful voice with a great range.
I've seen your setlist and it's pretty awesome that would be really cool, tons of songs that people like us would love to hear.
I don't know how average fans would react to that.