All those options would be nice, but you have to go to a higher price point to get them.
You do have a point, but I really don't change my gain during a gig. I just dial it in for the room and let it go. The only time I might adjust it is if the crowd becomes very large or very small. People soak up some sound.
Haven't gigged with mine yet, just playing with it since getting it this past Monday. I thought it was interesting how you can control compression with the gain knob, but only when in vintage mode.
Otherwise, I'm with ya'll about not messing with anything much once set. That's always been my way, too.