Elephant in the Room - Zeta Crunch

I'm not arguing with the fact that zeta drop rates arent the greatest but I think zetas shouldn't be easy to acquire. They're hard to get for a reason, they make a huge difference in your characters/squads. If they just practically handed out zeta mats like candy then everybody would become op just like that. If people arent getting enough from the challenge then they could always choose to buy zeta mats with their fleet currency instead of ships or characters. That's what I do. I still get zero from the challenges a good bit but i can still do a zeta every 2-3 weeks