Poor chap.
Clearly failed aircrew or more likely a non-select at OASC to have that kind of attitude.
And with that kind of attitude to UAS studes, he must be at a FJ base which also has a UAS, or be terribly bitter about having been too thick for uni, which must be difficult now that even Derby Tech is a Uni, and you need only the most modest qualifications to get into higher/tertiary education. Or perhaps his UAS took one look at him and said: "No thanks."
Most of us who aren't aircrew recognise the sterling job you chaps do, are suitably grateful, and understand the difficult background against which you have to operate. Who wouldn't whinge at some of the $hit you have to put up with? (Even if most of you you lack the correct degree of respect and love for us poor hardworking journos.....! Oh, OK then!)
But not all those who are blunt are remotely like he is, and who knows, maybe he'll now go out and look at the sharp end with open eyes.