Forest legends

Why is it that our legends are coming out and saying Oliver Burke and B.A should leave either this year or next?
I think unless they categorically state they no longer want to play for us and want to leave, all offers should be rebuffed instantly. I would not accept no less than 20M for either of them and if we're serious about promotion either this year or next they will be vital to us achieving that.
I don't see what good it does for Burns then Gary Birtles coming out and saying what they have surely it would only get them thinking if a move even if they hadn't already.