A loan/credit ICO backed by Microsoft is definitely a great idea.
It's a huge market indeed. They have the possibility of really making a great move towards the future.
And not just in their industry. Their potential for any financial application would be incredible. Creating contracts which could be used as being or insurance, guarantees... is just the beginning.
It's a great idea as i said. The industry would really benefit from a proven contract platform and from executing those actions in the blockchain