Security for those who work in IT without physics/RF background is mostly just a layer on top of the fundamentals that only a select few know and can apply. Rest is mostly theatre. If you tighten these here and there, and make sure it's really tight, you are properly protected. All while the standards you must use for Wifi area like an ementaler cheese, a ridiculous shitshow, just like bluetooth and the rest of the terrible standards that are forced on you.