How science often works is you try to disprove things, and if you can’t, you accept them as likely to be true. So, to show that the thesis is complete and accurate, they’re trying to find places where it’s incomplete or inaccurate. In the defense, your job is to defend against these attempts.
Most consumers don’t buy their own routers. The only time I’ve helped people buy routers in the last decade is to get one you could install a vpn on. Looking at the wireless standards never crossed our minds.