This will lead to a lot of whining by users who now have to use their brains for the thirty seconds it takes to figure out wiki entries. It's a shame that it is accepted that knowing Office as a product is a thing and once you "know it" you can turn your brain off. I'm surprised nobody has mentioned that Google Apps/Drive does this automagically for you on documents with multiple editors... simultaneously even.
I will agree that not using MS products on this will reduce the problem backlog. Sharepoint (the free version) is also another solution - one that I have seen exist rife with its own issues.