> Who is this "we"?
Almost every jurisdiction on the planet.
Selling something that you claim does A while in fact it empathically does not do A is illegal almost everywhere. This isn't some sort of vague subjective claim or obvious exaggeration, but a very specific objective claim. "Use this deodorant and you will get laid more often" is something no reasonable person takes literally, so it's allowed. "This drive can store 10TB" is a very specific claim, and if it can only store 64GB then it's deception.
There's mountains of jurisdiction on this, in many different jurisdictions around the world. Exact details differ, but it usually comes down to something like the above.
