There have been some changes to the official policy on minor edits.

I haven't been following meta.SE as much since it was split from meta.SO, but I know there's been discussion recently about what to do with minor edits and they actually removed "Too minor" as a review option on SO:

http://meta.stackexchange.com/questions/239106/what-should-be-used-in-place-of-too-minor/239107#239107