I think you are both correct and wrong at the same time, let me explain. It's a thing people don't know how damn good they have it right now. Remove sound, you'll miss it straight away, it's taken for granted throughout history.
Imagine every E3 trailer was just generic "epic" music and no sound effects. Imagine, worse still, if every E3/game trailer was just mute or had terrible audio. Imagine if the all call of duties, battlefields, need for speeds, FIFA's, final fantasies, metal gear solids, half lifes, silent hills, marios, zeldas, forzas and elder scrolls, just causes and DIRTs, GTA's and world of warcrafts of the world were to just quietly vanish into a sea of terrible, copy and pasted generic sound effects and looping music...the world would weep and cry and gaming would of been dead long ago without sound improvements.
It's something gamers, and people, even in other media and film, take for granted, once it's removed, you'll regret it not being there very quickly, people just don't always understand that. Just because overall it is something we are just "used to" like we are used to how a car may sound or a gun may sound or an explosion may sound, where as in reality, and with the studies i've done, removing it or replacing it adds a bigger psychological impact than slightly worse graphics.
It is always going to be something you will miss 100% as soon as it's gone. Like it or not, gamers are sold on sound as much as they are visuals, try watching or playing your top 50 games without audio for a few hours and come back and say how much you "still enjoyed" it, because you won't of.
Deep down, we are a minority, those who actually "pay attention" to sound design and appreciate it so much here in this thread. I wonder how well Gamescon this week would go down if we have game audio from 1990's or no audio at all. When does a great soundtrack or intense sound effects not immerse you and throw you back in your seat in those first 10 seconds of a top AAA titles trailers or movie theatre blockbuster trailers? Never. Not to mention icon film sound effects from star trek to jurassic park.
Man I ramble too much, sorry
. TL;DR sound good, ignorance bad.