Expressing himself does not preclude him from answering questions.
It’s logic. A being true does not preclude B being true unless B = not(A).
I don’t know how or whether you can link to mentions.
How many PR requests go unanswered?
People have stopped bothering to ask because they don't get answers. To quote this article, "While The Drive would contact Tesla for an explanation of Gigafactory Berlin's situation, the automaker recently disbanded its communications department.":
Is that good PR or bad PR?