He could be quite charming, and had a number of willing associates.

But I'm sure at least some of the Fallen simply insisted on asking their questions at the wrong time. They would have chased down answers sooner or later, but doing so when they did got them booted out as well.

I call it 'dragged' because no one was clear on the consequences. If Lucifer was himself, he certainly didn't advertise them. [The manipulation from his side was obvious. She's only just beginning to see how bad the manipulation was from both ends.]