Generally if someone earned less than $600 as an independent contractor, the payer does not have to send the contractor a 1099-MISC. Given that Facebook pays $20 per month, it's well below the limit for issuing 1099s.

everyone in the US who is not employed directly (where the employer pays income tax for you) are by default 10-99s if they are paid more than $600 per year...

how the people are paid has nothing to do with why Apple took the action they did.

Assuming Apple doesn't explicitly ban analytics collection (and how would that play with fancy mdm solutions?), it sure sounds like it should!