I would have a totally different feeling - if I believed that the cops would 'do' anything. They have impressed me, and my five decades on this planet, at the lengths they will go to not do their job ( or flat out do the opposite if it fits their wants. )
That prof being one that curved everyone up to make their life easier by keeping everyone happy. Rather, we needed to learn the material and figure it out asap.
I learned from that class, I didn't know how to learn - and was totally confused, as I was a great student with great grades, etc. But that talk hit me hard, I realized that he was correct - and I needed to change.
That wake up call, nearly three decades ago, has since allowed me to learn novel tools, technologies, etc - where others struggle. I have benefited personally incredibly from knowing how to learn - many won't understand what I'm saying nor will they realize why it is important. Too often, my peers - other prof's will make an easy class/test/etc to make everyone happy and pass that buck forward (after all, admin is happiest when the customers are happiest). Are we really helping these students though?
I've been lucky to work with teams from Brazil, India, China, etc - these folks have been pushed in ways that would seem inhumane by the standards I'm reading in the comments. These folks are the ones that industry (and the individual for that matter) wants and will want, as they know what they are doing and are able to learn novel technologies as they emerge.
I tell my students the importance of learning how to learn, that their competition isn't in the room with them - it's thousands of miles away...They just want an 'A' for that six figure job that they have been promised. Indeed, whenever I hear that "six figure paycheck" my heart aches and I'm saddened that someone in advising/online/etc keeps pumping this idea out. In my opinion, a bit of discomfort in a synthetic environment like academia - for the possibility of a lifetime of ease now being taboo is beyond saddening.
The amount of cheating that I ( and my fellow professors ) have seen during these past few years has absolutely exploded (in a way that is beyond belief, and I've been doing this for a while).
The techniques others have outlined/alluded to ( camera off, a big life event just happened, looking off camera, noise, etc ) are all things that I've been seeing. And whilst this is nothing to be lauded, after all how many vectors are there, I do think that perhaps a solution is looking towards academics. (just saying...)