[Private]
[Despite the initial filter from Asuka, she still doesn't feel like everyone needs to know about her pain.]
All that is known is that they were attempts at communication, which were unsuccessful because of the force used on the already fragile human psyche.
[And NERV and SEELE didn't know everything, because only Rei maintained enough clarity and sanity to remember the Angel talking to her, and she died before she could report. But he doesn't need to know that.]