This shits me no end! And we wonder why RL is perminantly in Unions shadow...
Its great having that instant recognition, but the problem comes when people are too sure that they know what the game is (thinking you are talking about Union)...
What is needed is a bit of doubt to go along with that recognision, "hmm, i know Rugby, but ive never heard of GRUNT Rugby before". The problem with calling the game Rugby and riding Unions coattails is that we will always be limited to Unions scraps. I like to think RL is good enough to stand on its own as a genuinely great game, not just a shitty knock-off of Union trying to trick people into buy tickets to the wrong games.
Ive lived in China for a year and Europe for a few now and the best way ive found to explain the game is saying that its a mix of Rugby and American Football (which is a pretty perfect description).
Id love for the RLIF to call the game Gridiron Rugby, at least in the emerging areas, just to avoid that constant "oh year, ive heard of Rugby League. Go the All Black!!!". Kills me every time....