GP didn't mention university degrees.
You get experienced devs from inexperienced devs that get experience.
[edit: added "degrees" as intended. University was mentioned as the context of their observation]
The first sentence contextualized the comment to university degrees as far as I'm concerned. I'm not sure how you could interpret it any other way, but maybe you can enlighten me.
I read it as this is the context from which I make the following observation. It's not excluding degrees but certainly not requiring them.