Even if it were "not the kind of code that you deal with in 90% of the cases" that would not mean it "was not an objective comparison". It might mean it wasn't

Even if it were "not the kind of code that you deal with in 90% of the cases" that would not mean it "was not an objective comparison". It might mean it wasn't a relevant comparison for you; but if those 10% of cases were performance critical it would be very relevant.