Isn't sad that ex pros, who get paid to analyze football seem so confused about the concept you described. It is mad, this is anybody can have a good or horrible football view, whether they played the game or not
Yeah, but one thing that is kind of remarkable, but that I have noticed so many times when watching team sports for 30 years (of which I have played ice hockey until I was 22 y/o at a semi pro level, which is a game I understands well) -- very few coaches/players/experts adopt, and many of the most successful coaches at one "era" are the ones who holds on to their views of a game the longest.
All team sports like football, basketball and ice hockey constantly develops. When I was young, it felt like every single team in the PL played 4-4-2 or 4-5-1, the diamond came along, all shifted to 4-3-3, then not that long ago, we got back to seeing 3 CB formations even in the PL. Teams are now playing up form the back, this has basically been unheard of in the PL before Pep came along. Now more and more are having success with it, and it seems like it will become the predominant strategy going forward. Until something else comes along.
But like lets say someone develops a "cheat code" that completely breaks the playing up from the back, Pep inspirated style of play, that we see now -- I would not at all be surprised if Pep, ETH, Kompany, Arteta and co completely fail to adopt.
Honestly, this is an area some management consultants could make a buck. There are some common themes for these mistakes. First of all, everyone are normally copy cats with these type of things, but when there is an early pioneer in an era, the success tends to be attributed to someone having a special squad with special talents that it is impossible to copy. But its not really the case, Brighton is having success with a heavily influenced Pep style of game. Second of all, they are often carried by an improvement in player development. In the development we have seen in football lately, its definitely that kids of today's technique is just so so good. You can play a very low margin game of football without giving away a lot of goals.
But back to the original point -- I am not surprised really, but its definitely a fact, pundits can be completely oblivient to what is going on right infront of them.