That is true, but the trick is how to separate the hype from the gold, which is almost as much superstition as science. I would disagree that Python didn't have a hype phase; there were comics like this[1] after all.
I remember that comic - I think it coincided not with anything special happening in the python world, it was just when Randall Munroe learned python.
Python benefited enormously by contrast to Perl, despite being slower.
Nowadays, open source development has centralized far more on large public companies, so there's a lot more marketing effort being put on all the languages / frameworks / libraries out there.