The Taliban don't often shoot at AH because if they do and we identify the firing point they are dead - simple as that, it's a Card Alpha engagement. To say that all of a sudden they're going to start targeting AH just because Harry is in theatre is quite simply ludicrous.
The Taliban would love to shoot down any aircraft but the vast majority of insurgents are incredibly afraid of us and have a quite sensible inbuilt sense of self preservation so they don't normally to it.
I personally quite enjoy hearing via ICom that they're getting "the big thing ready" as it will mean guaranteed trade!