While I agree with your overall point, it’s worth pointing out that Apple doesn’t really do a lot of freemium stuff, so Cook’s comment should be taken in the context of having nearly all customers who have already paid up.
Up to 3 people in a meeting is unlimited. Over 3 is limited to 40ish minutes.
The Facebook pixel SDK etc etc stuff you're probably thinking of got removed from recently updated clients. Check out their privacy policy to have a look at the actual data they retain from actual meetings. it's fairly limited and only to do with account management / meeting management from what I recall.