For me its not about hitting limiters or staying within boundaries its about using multi band compression to its full effect. Without a decent pair of ears out front i don’t know how most people would achieve this.
Running your own events as Purusha does would, (hopefully), mean a healthy set up time & I’m sure he’d pull it off no problem. For the average person turning up to participate in an event I could see running a Finalizer from stage being a major headache tho. Dialing stuff in based upon what you hear onstage could be disastrous out front.
Ive seen many an artist try to take control of foh from the stage & rarely have I heard it work.
Chase & Status for e.g. use a similar set up where by they bypass the console & run directly into the PA processors, (XTA’s last time I worked with them). This is then monitored/manipulated out front by an engineer familiar with their set.