A lot depends on where teams train. For us, it would be hard to watch without being seen. For many others, even at Boro who have a really good training set up, there is a public view point, though I'm sure they will fix this problem now . But it's still breaking the rules, just at some clubs it could be a bit easier to do.
I think the EFL know that they had to punish Southampton properly. They literally had no defence, and they were essentially only docked 4 points. The rest is just conjecture: Hull have beaten them twice this season!
West Brom were docked two points for the most tiny, marginal and very debatable infringement of financial rules, something that they are still contesting even though they survived. I think, for now, Southampton have got off pretty lightly given their disgraceful behaviour, in spying, denying, obfuscating and public pleading when they knew all along they were completely guilty.
Some very public humility from them would be wise if they are capable of it, as the water might get a lot warmer for them. And I hope that young lad sues the bones out of them. He has little to lose as he might struggle to work in the game now.