Well, yes. I did say they followed the license. I think it's a bad license for an OS because it doesn't encourage/require bad community members to open their source. Companies like Sony have no excuse for not upstreaming their improvements. They didn't because they weren't required to.
I think it's a good licence for an OS or for any software because it gets more products pushed out there which all in all gives society more stuff to play with, which is kind of the point of writing free software, at least for me.