We aren’t talking cars, boats or the starfleet, @Alexandre. They can call them whatever they want. IMO, when you are talking in a college forum about colleges, the word “flagship” has a very different meaning and can be misleading, especially to those new to all this. Words have different meanings in different contexts. The word we cannot use here on cc is used elsewhere to mean a little person with a long beard who lives under a bridge. The word has a very different meaning on internet forums. Just sayin’.
BTW, wasn’t the term “flagship program” used by NASA for their missions to explore the solar system? Same term, different meaning…