Facebook custom audiences scrapers gets you banned?

There are all these scrapers out there on the market now, where you can get custom ids from a Facebook page, and then create a custom audience from them, and use that as targeting in a Facebook ad. Wow, so far it sounds great.

But what about the terms of service? It seems to spell it out quite plainly:

"You represent and warrant that you (or your data provider) have provided appropriate notice to and secured any necessary consent from the data subjects..."

What??? You mean like an opt-in? THAT'S not how I see this being spoken of.

It also says this:

" You may not use the custom audience feature unless you are an advertiser (or an agency acting on behalf of an advertiser), Ads API or Custom Audiences API partner, a data partner that has signed an agreement with us which grants you permission to upload and create a custom audience, or have obtained express, written permission from Facebook."

I haven't heard anyone talking about having to get an agreement from Facebook.

What of it? Will page owners eventually get banned by using the various scrapers on the market now?