I am not going to argue that point either way,I have seen them hit the same HOLE out of a machine at short distances but at further distances,drag will take effect and the broadhead tipped arrow will hit lower.
This isn't the norm though.Human element and setups do play a role.That is why I said close and quality.
Things like PERFECT spine,helical feathers,good foc,clean releases(loops),along with centershot.vertical and horizontal all play a role.