What about the people who want to bird farm, or scale farm? What about... stopping the what aboutism. This is supposed to be a bit grindy and keep people busy until the expansion. And we run the same stuff again and again for other things- current tomes, current mounts, etc.
If you really don't think the reward is worth your time, then don't do the event. Several people I know have 0 interest in it, or would rather be doing other things, and are.