Seems like an obvious back-up plan.
We'll all be regretting it when the blockchain goes offline (because we never forked or ran our own dedicated nodes), and the new one comes online.
Many people would offer to vote for this initiative (to test a fork and run a node) to be funded in the DAO, but I think nothing gets on that list without Steemit's approval. It would be awesome if some exchanges kept classic steem listed, and it could continue to hold competitive value when the majority of the community remains.