The author didn't even put, "update LibreOffice to be more compatible with GNOME specific libraries" on the list of obvious possible solutions... While writing new apps whole-cloth and updating decades old software were ... and also says this idea isn't meant as a replacement...

This reads like a product manager who idolizes Apple and doesn't actually understand how hard development is, or how foolish ostracizing the rest of your ecosystem is. (GNOME will never exist outside of Linux)