I think the OP's suggestion/complaint was not so much the distribution of the revenue in the playoff games but more the fact that you can not change ticket prices for the playoffs.
I understand the point of his suggestion....My explanation addresses the fact that the ticket price changes are set the way they are at the times that they are for that reason. If Prices could be changed for the playoffs, it would create a further imbalance between the playoff teams, and the ones who do not make it.