This isn't about liking open source. This is about the labs just being cool and doing cool shit instead of the opposite which is Anthropic where all they talking about is killing everyone and taking everyone's job.
The US population is much more pessimistic and doomsday driven these days, whereas the Chinese are more optimistic and future driven.
The point still stands. Devs like "cool shit". Upper management doesn't care
Unless you want your company to become Google which use to do cool shit but now they dont and now they don't have a single person at the company that can build cool shit so they just release a bunch of lame shit.