With this qouta system railways will be aligned to population ratio. If you are saying MH and KA don't have railway routes comparable to state population you are right but demands are mostly coming from these states only. In this forum too mostly MH and KA members voted yes as they think they are not represented well.
I am happy that you support it if quata is around 50-60%. The support of states aligned railways is increasing now. I am hoping in 5-10 years railways have to aliged it with respect to state, that will be win win situation for passengers and railways. When railways was started in India it was aligned with administrative region.