Those cities encompass both urban and suburban areas, and they represent something like 80% of the country's population.

While I'm sympathetic to the notion rural areas should not go unrepresented, I find an electoral system where you only have to secure electoral votes for states representing ~25% of the population to win, only a handful of which you need to campaign at all due to the winner-take-all nature of virtually every state's electors to be strictly and starkly inferior to one in which a candidate needs to campaign for no less than 40-45% to secure a plurality.