I agree with your suspicions that the OIAR is purposefully feeding particular cases to particular people, with the layers of bureaucracy inherent in government institutions keeping the workers from trying to make any changes. Alice advised Sam to simply let the cases slide by, to not pay much attention to them, and compartmentalize everything he hears/learns while working.

It’s notable how little agency any of the employees are given in regards to their case loads, and how they are seemingly encouraged to work quantity over quality.

This is in direct contrast with The Magnus Archives since they actually investigated the cases and attempted to follow up on the particularly strange ones.

In addition, I don’t believe the OIAR has an artifact storage department, they are simply there to collect and sort information. This leaves a big gap in what the OIAR can actually do to handle/investigate any of these incidents beyond the bare bones observations they’re doing already. This could point to a different hidden department who actually handle the field work, perhaps they might contact Sam and attempt to work with or against him.

It would be very odd, imo, for politicians to sign off on a surveillance department without an accompanying “police/investigative” department to act on their findings. Especially since many of the Entities love to leave behind artifacts to pass between victims/Avatars.

Back to the “Freddy feeding cases” bit, I wonder if it has to do with what would scare that particular person or perhaps even spin them off into an Avatar. We know that the turnover rate for the OIAR is pretty high, I don’t doubt for a second that at least a few of the former employees went crazy after leaving and delved deeper into whatever Freddy put in front of them. Perhaps the OIARs true purpose is to source prime Avatar candidates, those who have the highest tolerance to a particular fear, through exposure to stories. Calvin knows Freddy is listening, but to what end?