I got the same message. The entire experience was pretty poor and I think the review quality at the moment is probably very poor in order to get through a large number of applications.
Particularly after filling in the form I got sent an email asking for the same details as I put in my applications.
I put more detail, paying careful attention to be very explicit about the requested information, however I then received back a second email with exactly the same request for information obviously cut/pasted.
I then replied saying that I didnt know how I could answer 2 of the points more explicitly and asking for more detail on what they actually wanted from me only to receive an immediate rejection.
I think it’s pretty poor form that twitter as an organisation is opening a dialog with developers and then effectively ignoring the responses and resorting to cutting/pasting of templates via email.
I suspect what will happen is that over time the wider community will learn the “golden” answers that the twitter reviewers are looking for and just always fill these in making the whole review process pretty pointless anyway.
And on top of that I still don’t know what was wrong with my use-case and have no way to either modify my use case to bring it into compliance or to reapply.