There’s no reason not to include a helpful subtitle that gives you an approximation of file download speeds ( other than consumers mistaking it as a promise the company can’t actually keep), but that’s a completely different animal than advertising the bandwidth itself in bytes. Because simply converting the bits into bytes will not result in the number that the customer ultimately sees.

All you would have in that scenario is the same confused consumer calling the service desk asking why the number of Megabytes they paid for is not the number of Megabytes they get when they download a file.

This as absolutely a hill worth dying on for me. I don’t think it would be a good thing for companies to stop advertising their products based on their precise and accurate capabilities in order to sell to a consumer based on a guesstimate around one subset of use of that product.