"Taking advantage of every possible loophole" is pretty much condemned when viewed in individuals & is viewed by society & the media as underhand & is certainly no fit way for a household company to run & be trusted to run a supposed London Airport & is without precedent & frankly shocking.
You may not condemn Stobart but perhaps many of the affected good burghers of Southend may choose to differ.
The reasons for Stobart fighting for survival have been pretty much explored in the forums but with much being the result of their own hubris is no excuse then to plague the residents with more controversial cargo flights for Amazon by sleight of hand as you suggest & support.