Pull up a sandbag.
The RAF deemed ONC sufficient for Techs such as myself to work on some of the most complex equipment on the planet.
Now I'm working on "complex medical equipment" it would be an overstatement to state that i probably only ever use / or require 10% of the skills i was using on a daily basis back then but the NHS sees fit to demand HNC's, Degrees etc and of course Registration in order to do the job.
One things for sure, the job is very well paid, even overpaid for many positions in my opinion, especially toward the "management end". After all, it is an absolute doddle!
Topper