Sure, but then why pick on Comic Sans? Lots of fonts get used inappropriately.
It's just the most common example, as thanks to Microsoft it comes preinstalled on just about any computer. Given the typically short list of fonts to pick from, many people will (would?) pick Comic Sans when they want their text to look a bit 'different'.
However, I do agree that making fun of people picking the wrong font is a bit elitist. At least Comic Sans is easy to read, so one could do worse.
I'm not sure if complaining about using a jaunty font on a WWII death row cell door explaining how many Jews passed through that cell is elitist at all. Real example. Using comic sans there is tone deaf at best.
Of course comic sans specifically has turned into a bit of a meme so now you'll see all sorts of people complaining about it getting used anywhere, which is a lot sillier, but still not elitist I don't think.