Yes. My kids do all of their school writing assignments on Google Drive (Docs); my daughter, now in college, did all of her work on the Google cloud during High School, and the kids love the real time collaboration features. My youngest, in 4th grade, uses a "private" Google service that their school set up. My point here is that I'm sure many people are using these Google services and Microsoft saw the writing on the wall. That is likely what helped the App group divorce themselves from the OS group in this matter.
Note that the separation is not that strong. For example, I wanted to import a spreadsheet as a table into a Sharepoint wiki page (cloud based), and it required ActiveX. However, both Firefox and Chrome seem to be smart enough that if you do a CTRL-C from Libreoffice on the cells you want to import as a table, and then do a CTRL-V on the wiki page, it does the table conversion. That was a very pleasant surpise.