This isn't true. There is a raiding scene, and those of us involved in the raiding scene pay close attention to world-firsts, and are entertained by the race.
Do not condescend something just because you in particular find no interest in it.
While you have a point here about his attitude - the core point remains valid: it is a small segment of the population that enjoys that race.
When you take that into consideration, and then factor in the development time of a raid, it just doesn't make sense. It is why WoW is finding ways to allow 80%+ of the player base to see raiding content in different difficulties.