A far better marketing strategy would be to loudly announce, continually, that LibreOffice is the best software for handling Office files and ODF alike! And as people switch to LibreOffice and it defaults to ODF, that naturally grows.
Meanwhile, LibreOffice's current marketing strategy may succeed in getting governments to offer ODF files and simultaneously sabotage anyone from ever switching to LibreOffice because LibreOffice's own marketing claims it won't work well with Word and Excel files.
No, it doesn't only do that. It also suggests the open xml MS Office format is a mess.*
> This is a conversation I have at work, where people laugh when LibreOffice is mentioned and suggest it's incompatible and we can't consider it.
This is evidence your coworkers are misinformed and you can't correct them. It is not proof that the only thing this blog post does is communicate LibreOffice can't handle Microsoft Office docs.
* this is a tale as old as time, I'm 37, remembering reading about this over and over again on /. when I was a young teen. It was part and parcel with Microsoft's antitrust era. The idea was the open format would help avoid antitrust claims, the complaint was the open format was so byzantine as to be effectively closed.