It would be interesting to hear from people maintaining code that came from these startups. I suspect they would have a very very different view of things :)
Maybe something investors should think about? Ehh, who am I kidding...
This simple code and more time on hands to spend on promoting = successful startup. No one really cares about scaling YT-like app when it has 10 users.
Developers will handle that. And if they want jobs, startups must be made. As you might know, successful startups are made by less technical people mostly...
A lot of HN users are for example startup owners/creators so it's normal that they will prefer easy and semi-automated language like Python.