Orgato, Staff Applications are closed for the time being. Try applying in a month or so, when they apps come back. The reason for them being closed is that there were too many applications, so they revoked the ability to apply for a bit.
To be honest, that's not disliking your opinion, which is what you see it as, but she is simply stating a fact. No one can keep everyone happy based on something they do. A main reason for why this happens is because everyone has different
As staff, you don't need to show that you dislike their opinion. You could've just referred them to the suggestions thread, and as staff you should have the initiative to ask what he thinks should be done for the server