Whatever designer / producer thought it would be fun to gather all those Umbrites obviously never did it themselves. I'd fire them for purposely torturing everyone. It's a simple ploy for SE to suck up more of your time so you have to pay for their game.

The Umbrite amounts or costs should be lowered. It is by far the dumbest waste of time I have ever seen for a quest.

Quit trying to turn us into mindless grinders SE.