The trouble with this is, that pillock who challenged the Security Staff and had to chat to the two coppers actually KNOWS the rules and has just done this to provoke a response from people he knows are unlikely to know the rules, despite him knowing he is actually in the clear (when the stadium is basically empty of course) - but that wouldn't provide any entertaining content for his 'channel' would it?
BTW I am actually a drone owner, and am correctly registered as an operator and a flyer, but currently NOT flying at the moment as my drone is an older heavy one which would need additional registration, insurance blah blah etc - when I get around to buying a new DJI Mini which is under the 250g limited I will start flying again. May be at the Etihad? ;-)
There was another a few weeks back at the Swamp where the flyer (probably the same guy) did EXACTLY the same thing - he provoked the security staff similarly and then from just off rag property flew his drone over the top of the swamp winding them up!