No. I don't know why.
Yes, it seems silly to me now too.
This time however when I saw them I took a couple of euros out of my pocket (the suitable amount for photo ops according to the guide books) and approached the most UN-intimidating actors.
They arranged themselves and the third guy snapped the pic with my camera. They weren't very friendly and I don't think it was because they were in character.
He then asked me for ten euros. TEN EUROS? For taking a picture of me with my own camera? I laughed and told him I had two euros, he looked disgusted and took it.
Oh my, what a difference a couple of thousand years make!