Because XI is not an A-list MMO. However, it is more akin to a B-list Eve Online, Everquest types.

It was SE doing though.......XI was a A-list MMO, until SE decided they don't want it to be lol.......

To Immortal's point, I will add XIV was their biggest mistake.... The reason why games such as XVI selling 3 million is deemed a failure, is due to failed projects like XIV (Regardless of what it is doing now....because it obviously aint enough....).