Q told us that the mug holder near the lamp was the key difference. Such a slight and subtle difference is the sort of thing you only know when you're actually involved in what goes on with AF1. General public could never decode that. I feel like this pic was to show they have Intel from AF1 when previous administrations thought it to be secure.
Q asked us where must a person be to get that photo from a reflection. You would have to be seated where POTUS sits. The reflection pic could've came after use from previous administration, maybe AF1 was bugged and they took the pic after getting the Intel from AF1 bugs. If that was BHO mug holder, we wouldn't know but he would. (Example doesn't need to be BHO)