Considering 99 F4 is the best selling wheel formula on the planet that's hardly controversial.
My controversial opinion on wheels and all the niche formulas and shapes is keeping manufacturers from making more wheels in normal shapes/sizes and keeping the price of wheels slightly lower. At most Spitfire could do 99 and 93 in Classics, some kind of conical/radial/radial slim middle shape, and a single wide shape. Does Bones need 5 shapes, 93, 95, and 99 X plus whatever other formulas?
Same with bearings now. I love my Quantum's but they make way too many pricey options that no one understands the differences of and I'd rather see fewer options and the price on par with Swiss again. Even Bones doesn't need Reds, super Reds, ceramic Reds and so forth. Give us Reds, Swiss, maybe one other.