Just this posting could be viewed as Amazon trying to create the impression that it is actively surveilling labor organizing activities, which it's illegal to suggest, even if you're not actually engaging in that practice.
Concrete things that are highlighted as out-of-bounds:
1) Putting a dummy security camera in a breakroom
2) Hiring someone to sit in a car in the company parking lot and pretend to talk into a phone every time someone goes to their car
Given that wide constraint, I can definitely see how "hiring an intelligence analyst who would specifically be tasked with keeping the company high-level leadership informed about labor threats to the company" could be interpreted, reasonable-person-wise, as the company surveilling organized labor. I don't think it's the slam-dunk some are describing it as, but it's, if you will, "a bad look."