Odd, I've never come across a rant like that. But I do seem to see self satisfied "millennial" bashing pretty often. (I don't think I'll ever understand this impulse to ascribe vague personality traits to broad groups of people across a large number of birth years.)
Apologies, it was probably a little too judgemental and unnecessarily tarred a lot of people with a wide brush, but there was a phase about 12 months ago where Medium was full of posts, to paraphrase what someone else said: "By unknown twenty-something year olds posting angst driven articles about leaving some unknown valley startup as if they were Jimmy Page leaving Led Zeppelin"...
It's weird, because the person said "another one of those..." The Talia Jane article came to mind but I'm quite sure there aren't others. Seems kind of weird to imply this happens all the time when its happened exactly once.