I flew a few minutes last night to have a look at my system. I'm on TSH 4.02 and I experienced the same behaviour as you. I've never noticed this before as the only time I would duplicate the HUD display in a MDI is if my real HUD was inoperative due to battle damage. However for the FLIR MDI page, I wouldn't expect a VV indicator or ILS cross hairs. The FLIR is more a targeting pod than an aid to navigation or flight.
Wizard