I don't know that it's about "Bland and inoffensive" so much as about recognition that differences are fine. Two football teams don't agree about which team is best - but they do agree the rules of football. Without that there is no game.

Having multiple languages is more of that "differences are fine". The use of Directives rather than Regulations for many purposes allows a country's government to incorporate local differences in how we do things. A Regulation applies everywhere, but the Directive just tells your government to make local law to meet some goal. What we want to achieve is the same in Paris and San Gimignano but how we do it will vary by local culture.