But you only qualify to play in it if you aren't good enough (or don't pick up yellow cards) to qualify for the Champions League. Or if you FAIL to get into the knockout phase of the CL. It's fundamentally flawed comp.
Yes, it does now have a big prize at the end of the rainbow with CL qualification, but that too is proof that it's a consolation, win it and you are awarded the right to play in the big one you weren't good enough to play in.
There's also a strong argument that it's better off for clubs to not even qualify for it and focus on the League, doubt Leicester would have won the Lague had they been competing in it, and doubt they would be where they are now if they were in it. Same too of Chelsea under Conte, doubt they would have won the league that year.
It's flawed.