I'll stick my head above the parapet, and simply avoid the pejorative term "theft".
The things [whatever they are] are in the Lounges for the users of the Lounges.
They are
not free gifts to tuck into your carry-on.
You get fed on the bloody aircraft, and I assume nobody here is too poor or lazy to buy their own newspaper of choice. I do find the attitude of some folks on FT quite bizarre ... and slightly distasteful.
Harrumph. So there!