Because the updates are not anyone “trying to sell me security updates I would be getting for free on Debian.”
Really? Which part isn’t true, the selling me updates or that they’re available on Debian?
Come on man, use your words lol.
It is entirely untrue. Where as you made the claim, and I am merely calling you a liar while making no claim of my own, it would seem that you must prove your claim with say a sales promotion or some other solicitation plus a credible report that these updates would otherwise exist without the charge from those whose business use case depends upon them.
If you wish to hate upon ubuntu do so, but don’t lie about it.