Extraordinary claims require extraordinary evidence. We know that Russian air force is actively using gliding bombs to attack objects on the front line while flying over the territory controlled by Russia. One would need strong evidence to convince us that they have started to use gliding bombs differently.

The US on other hand is flying over the Iran for a month so the claim that they started to use B-52 in addition to smaller jets is not extraordinary. It would be strange to deploy B-52 with GBU only to strike something on/near the Iranian border (where there are not many targets which would justify GBU usage) so it's a logical conclusion from the posted photo that B-52 can fly over the Iran (at altitude beyond MANPADS reach).

Dude, the geolocation and sources are all in the comment. CENTCOM posted this picture, you’re better off spending your effort questioning them.