No, you are making the mistake of thinking everyone shares a common culture with you. Even on these forums there are people from different countries and different generations. They all have different cultural baggage. And they often have very different ideas about elves and dwarves, and, whilst they may not have heard the name "Loxodon" a large proportion of the population of Earth knows what Ganesh looks like.
This wasn't universal. Tolkien himself was baffled that he was so popular in the USA when he received little recognition in his native country.
The game was traditionally focused on a western audience. I'm familiar with Ganesh, but that doesn't mean that I would know what the culture, or behavior of a race of Ganesh look-alikes would be or why they're called loxodons. At the very least, there's less than there is for elves and dwarves (or even halfings/gnomes) in the western world which is still a primary target audience.
This is not a thread about the appeal of "non-traditional" races. It's the appeal of "traditional" races.