This has become a bigger issue in CC2015.
You double click inside the project window to open the import window
Within this import window, you navigate through your finder windows. This is the same in every program across mac, you click and (in theory) double click into folders to seek out your file.
In after effects, it decides you couldnt possibly want one file within a folder and automatically brings the entire folders contents into your project.
Who is importing folders more often than exploring them to locate a single file? Why is this the default action in After effects alone? How can I turn this off?
Has anyone found a solution to this? I am having the same problem.