Well, actually I HAVE had a 30-piece concert band, along with 45 audience members, in my living/family room, thanks to an open floor plan and 12-foot ceilings. Trust me, it can get loud. Plus having permanent tinnitus from playing in big bands for many decades gives me a pretty good idea of what live sound is. And I don't stress a bit over whether I can reproduce that in my living room. Life is too short.
How much “suspension of disbelief do you need?”
We (or most of us) believe that it’s very difficult if not impossible to hear an exact representation of the the sound of a live performance on a recording.
The question is how much do you have to delude yourself into thinking it’s the real thing your listening to, to satisfy yourself.
To some it has to to be as close as possible. But others can make allowances for defects in the sound in order to enjoy the presentation.
‘How much do you need?