You're exactly right. And it comes down to simple economic truths. If mass amounts of people could "easily" make 130k out of college on a path to 250k then the hundreds of thousands of programmers around the world would give up their ~$100k jobs and go do that. But they don't. Just look at glassdoor salary averages! It's right there in black and white! The sunny salary numbers he posits are, as you said, out of reach for most.

(It should be noted that I completely agree with the article's conclusion. I've come to feel that the EV of buying a startup lottery ticket is woefully lower than pg, sama or [insert vc/angel here] assert. If you can land a solid and interesting bigco job, that's probably your best bet.)