Final question who funds bitcoin.org and bitcoinfoundation.org and who funds the development teams at bitcoin core? Updating bitcoin core with latest releases takes time and money so obviously somebody is funding it or are they all just happy crypto geeks who are volunteering at this so called non-profit organisation for the greater good for mankind financially?
There's no such thing as "Bitcoin Core team". There's a repository and a lot of people contribute to it. Some people contribute a lot, others just a little, just like in any other open source software project. Some Bitcoin developers receive grants from various organizations, like exchanges or payment companies.
Additionally few popular contributor (who are active/popular on Bitcoin community) also got donation from Bitcoin community.
Does he still have the Network Alert Key?
The Alert Key already shared publicly and Alert System is disabled few years ago.