The argument against the EC isn't that it gives less populated states more votes (that's not even true). It's that it is a winner takes all system where 50+1 in Michigan counts the same as 70% in California. But this is precisely the reason why the EC is in place, it's critical to a large state like the US with divergent interests. It forces parties to appeal broadly. Otherwise, you could have the Coastal People Party that could run on a platform of pillage Texas and the Mid-west while benefiting a handful of coastal states and they'd form government. It's a check on any region becoming so strong that it would mute the votes of other Americans.