As per the Jeff Atwood's "Attribution Required" blog post:
All the content contributed to Stack Overflow or other Stack Exchange
sites is cc-wiki (aka cc-by-sa) licensed, intended to be shared and
remixed. We even provide all our data as a convenient data dump,
seeded by us.
But our cc-wiki licensing, while intentionally permissive, does
require attribution.
So let me clarify what we mean by attribution. If you republish this
content, we require that you:
Visually indicate that the content is from Stack Overflow or the Stack
Exchange network in some way. It doesn't have to be obnoxious; a
discreet text blurb is fine.
Hyperlink directly to the original question on the source site (e.g.,
https://stackoverflow.com/questions/12345)
see more rules
Here is the screenshot taken from the video posted on "Developer Assistant for Visual Studio" page:
You can see the URL link in the "Source" which clearly indicates the content is from Stack Overflow. So, it does comply with the rule number one. Also, I'm not sure whether the shown URL has a hyperlink (OP confirmed - see comment) directly to the original question on the source site which comply with rule number two. So, a good faith effort is made to attribute the content.