It's not, though. I'm tired of everyone looking for a reason to devalue the work of other designers. "It's already done" can be a valid criticism, but "someone else already used these colors one time" or "this was way too easy for X company/organization" is just asinine. Minimalism often looks easy, but it's not easy.
Except it's not because there is far more blue in the top right corner than in that gradient, but w/e.
sometimes an ugly gradient just work in another design/canvas.