It's worded to avoid admitting that just about every server has heavy imperial bias in terms of population. I will (genuinely) give £10 to the bioware employee that posts the name of the server and the population count of the fabled server that is republic heavy. By heavy i don't mean 50/50 split or 60/40 in favour of republic, 3:1 ratios or higher.
Doubt there is any server with more Republic than Imperials.