Your point is irrelevant. It doesn't matter why the Premiership's model worked, it's working now, and as shown by the pic (assuming that data is correct), other leagues have similar structure, such as the Bundesliga, to which your point doesn't apply. It's definitely possible for the clubs to work out a similar structure, just like these other leagues have done.
Your post was just your expected criticism of the Premiership, which is why it was ignored. This isn't a thread about the Premiership, but about La Liga, which is the exception here, since the other leagues all have similar TV rights structures, so no one missed how the Prem is different to other leagues, it just didn't matter.
EDIT: You could make the case that those other leagues aren't successful because the clubs earn significantly less than the Prem clubs, due to the Prem's popularity. Still doesn't matter because the money that the Spanish league would have to distribute would the same, just divided differently between the clubs. They might not be as rich as Prem clubs, but it's certainly a big difference that would help out smaller Spanish clubs to level the playing field and make the league more interesting.
In summation, the argument here is that the total amount money from TV rights the Spanish league gets should be distributed better among the clubs, which is a discussion that is independent from the Prem, so I don't see where the ignorance is coming from.