No the comment is to show that this is standard business practice that goes back further than any of us have been alive.
BTW, MCDonalds has such a s sweet deal that they will never leave. AKA they will always pay the lowest price for the Coke syrups out of any of Coke's vendors. Giving you a cup, lid and straw cost more than filling up that cup with a Coke product.
Monopolistic practices indeed go back further than any of us have been alive, and so do most crimes. That doesn't mean it's not bad and shouldn't be fought against…
Excusing a bad situation by pointing to another situation equally bad doesn't make the situation less bad, it's just sophism. (And I won't even argue that there's at least an order of magnitude in the sums involved and that the consequences in terms of individual freedom of the two situations are of completely different scale,sibling comments have done so already).