Not to mention Libre being a synonym for Free Software (the GNU kind).

Approximately zero people understand that connection in the general population. They're screaming at the choir.

That is not true

Like 1 Billion people in the world are native spanish or french speakers and understand libre verbatim. Add to that most people speaking a latin language will also understand it despite the slight difference in spelling. Most people speaking english know the word liberty and those that have an IQ higher than an oyster do figure it out easily.

Additionally you don't have to have a connection for a name to work. I mean there are a lot of software used by millions of people without them never ever thinking why they are called like that.

People in this thread, so technical people, who already have an interest in OpenOffice / LibreOffice, are saying they don't even know how to pronounce it!