Of course! If the article weren't so silly, it would be hopelessly pretentious. Jimi Hendrix at Monterey Pop isn't real music? The Philip Glass ensemble doesn't play real music? And Taylor Swift and MF DOOM and Bob Dylan (rumors are that he went electric), not to mention all the contemporary fusion and hybrid quartets.... And we need to show our bona fides to prove that we're ... *serious* about music?? (For over fifty years I've heard unamplified classical concerts in virtually every major hall in Boston, NYC, and Chicago, so count me in.) And don't get me started on soundscapes and ecomusicology....
I assume that the article is tongue-in-cheek. Of course there's nothing like the Takacs Quartet playing Bartok in a small venue (a pleasure!) or a throaty jazz sax or a fiddle opening up that high, lonesome sound. I'm there, too. But it's absurd to think that one person loves or understand music more than another, just because they've heard unamplified music (or they have a $50k sound system).
Fun to argue about, though!