Earlier quoted context omitted.
If you think they're "very clearly laid out", can you quote the relevant sections, and definitions, from the terms that make it so? I've been searching, and asking, and not seen them yet.
Except as set forth in Section 2.1, You may not use, distribute or otherwise make Your Internal Use Applications available to Your Customers or to any third parties in any way (excluding Your Internal Use Application that is for use on macOS) It’s behind the developer wall but the whole thing is here. https://download.developer.apple.com/Documentation/License_A...
Compensated members of these apps' research panels are quite literally "contractors" of FB/Google, and possibly even under written contracts that explicitly limit the apps' use as Apple requires. So what you've quoted doesn't demonstrate a violation.