I don't think it's that stupid. If it were made by someone more reliable and quality oriented than line6, it would be totally interesting IMO. At least, I see potential in this philosophy, less complicated is always good. Take your ipad, go into the venue, adjust volumes and EQ so that it sounds good there, done.
The downside is that there's software, so any bug could just ruin a gig.
The paragraph talking about how mixers are too technical was kinda funny yeah.
Do you know if you can use their system with 3rd party PAs ?