Benefit of Protein Blends?

What’s the point of having protein blends like evopro or probolic?
Post workout you take whey and for mrp’s or before bed you take casein. Couldn’t you just take something like ON’s 100% casein insetad of getting blends and just drink regular whey after training? I just don’t want to spend my money on supplements I don’t really need.

I think you’ve got it figured out.

Protein blends are a selling gimmic, and (I suspect) a way to cut costs by putting in mostly inferior protein and passing it off as a better product.