I didn’t say there was no point in two brands of identical product. I said in this case they’re different because they’re two different brands in this instance and they’re not the same.I did not say I thought they were the same. It's been shown that they are not. I said your particular reasoning - that they must be different because you see no point in two brands of identical product - is faulty.
It's like if you said the sky is blue because elves paint it. It is blue, but not for that reason.