That tires-easy.com site is pretty weird.
It seems to be a brokerage house setup in asia, that simply has contacts with tire suppliers all over the country, then they just have the tires drop shipped, and they take a cut.
They have WAY more selection than tirerack or discount tire, and their prices are about the same as discount tire.
I suppose discount tire only sells name brand quality tires, because they don’t want to deal with the backlash of selling 9 dollar mohawk tires with a 260 wear rating.