A room at a hifi show is the place to get an idea how something sounds but not the environment to truly gauge a loudspeaker. That guy is a total blowhard.
OCD Mikey disses Magico M9
https://youtu.be/NJssrS0EQfA?t=6002
1:40:00
He said if you thought magico m9 was good at axpona you don't know hifi.