It's a possibility. But it's being done under their name - that's almost the same thing in practice. And I would hope it's not an unapproved use of their name, so they're implicitly approving of what is done with it.

edit: unless you meant something like them having a SE 'user' to categorize posts? I think all Q&As are under CC, so they're legally capable of doing that, but it certainly looks to me like it's SE doing the posting, since that's how they display authors too.

I think the spreading of good SE Q&As is great. There are problems with it that essentially can't be resolved (stale data), but it does spread good information to people who may not have seen it otherwise. But this is sheer laziness, and ends up with something significantly less valuable than if they had just embedded the question in an iframe.