This Multi situation is absurd - both in how the community attempted to sabotage his opportunity and in how 343 handled his offer.
I get it - he harshly criticized both 343 and the employees - that might make it hard for some people to work with him and could cause some internal conflict or resentment... but at the same time, he obviously has the talent and was a good enough fit to receive an offer.
As was my experience at 343... it seems you cannot win with Halo. Being a long time member of the community both helps and hurts.
Maybe First Strike Games should pick up a newly available revered Forger from the Halo community