The editing paradigm perpetuated by the legacy of MS Office is a dead end. The web has its shortcomings, so it's easy to see why people opt for MS Office-based workflows, but the end goal should be to wean businesses off contemporary word processors and raise a generation of kids who aren't taught to write essays in Microsoft Word or any other office suite that resembles the ones we see today. A standardized "Markdown for the Web" (or AsciiDoc) with native browser support would be a good 80/20 start and would move things out of weird proprietary office formats and towards plain text. Users themselves need not know the underlying file format is based on plain text, just like most don't know that HTML is plain text—because they usually aren't even aware of HTML in the first place. (Besides word processing, spreadsheets are a whole other larger problem that can be handled once there's traction on this front.)
Right now LibreOffice is aligned against this goal as a result of perverse incentives to continue perpetuating the MS Office model of document creation, editing, and (let's face it: email-based) distribution.
The failure of standards bodies and browser developers to address the real needs of MS Office customers should not be discounted. Heck, even EPUB which is largely (X)HTML isn't even really Web-native, and that's a total failure on the part of browser makers.
It might be prudent for the commercial companies associated with LibreOffice to stop thinking of themselves as vendors of an MS Office alternative and start thinking of themselves as a group who can see where the puck should be, and then move both the Web and businesses+classrooms there, too—and capitalize on being the first mover.
NB: Re-inventing the office suite as a web app (à la Google Docs) is not the kind of thing I'm talking about.