Sure. But if you're selling a product like turbos, why not work with a shop and a customer and improve your information to help future customers make a decision. The customer might get a discount, the shop might get some profile (eg as an evo expert) and GT Pumps would have good comparable data. Wouldn't even need to be on every turbo, just some key models. At the moment its impossible to compare.
When you're spending a lot of money on a build, no matter how nice the salesman, you want to be able to look at some better information.
I would add, the same would go for FP, who aren't much different.