IMHO, if the air briefing panel is not displaying on start up, that's a bug.
If the air briefing panel shows, but only the other player's info from a previous turn, that's a bug.
If the air briefing panel shows only zeroes, that's a bug.
Other than that ... the air panel / report shows ESTIMATED losses. And that's not a bug, BUT,
when the reports say something that is simply "out of bounds" and not anywhere near what is actually happening, then that is also kind of a bug. At least, it bugs ME.
I know that the losses are only estimates, but I have found that there is some information in the reports that is simply ... well, to put the best face on it, ARBITRARY. I think it could be handled better.
Not sure what is happening with this report; in an effort to make it "foggy of war" I think it is trying to put some "make up" on the air aspects, and I suspect that it doesn't handle the very large scenarios very well (like FitE2). This is just an aspect of the game that will need to be ironed out for TOAWV, I think.
In the mean time, I just rely on the REPORT and try to verify that (if need be) w/ the more detailed battle reports etc. like inventory / replacement reports.