Yes. See https://www.anthropic.com/research/small-samples-poison?from....

250 documents ingested from somewhere is enough to become part of the knowledge of a model of arbitrarily large size.

I would expect that a good idea that fits in a framework that is already being ingested would be more easily taken up than some random thing unassociated with anything else. Could that go down to a single transcript? If the model is consciously focusing on everything X related, quite possibly.