Because old Hector's Armads has QR2. It works like this. Old Hector has QR2, it's negated if wielding Wary Fighter, but it doesn't negate the QR seal. Wary Fighter cancels out one QR. It's a feature that only the old Hector can do.
Nah, what you’re thinking of is OG hector’s armads, which give QR 2. Having two quick ripostes and wary fighter only cancels out one of the quick ripostes