Real and Barca still deserve a larger chunk than all the other clubs, just because of the impact they have on La Liga worldwide, the respect factor and how they fill opposing stadiums, but not to the extent that the money is currently distributed at.
Real and Barca 150 million a season.
Valencia 30 million a season.
Sevilla 20 million a season.
Then everyone else fights over what's left. It's pretty ridiculous and soon Spain will become the SPL with Celtic and Rangers at the top, 20+ points clear of 3rd every season.