Presumably you know this, but it's not supposed to be democratic. That's literally why it exists, to curb majority rule by cities at the expense of rural voters, who occupy the majority of the land and—more importantly—are cannon-fodder for our military and thus need a seat at the table if we city-goers hope to continue sending them off to die.
Yes, that's why it's bad.
I don't think occupying a lot of land or joining the army at a higher rate entitles rural voters to more power than anyone else. If we're going down the route of determining whose vote should count for more, those two qualities seem to be near the bottom of the list.
We could just go back on our agreement. After all, people in flyover country are just a minority with little economic power and very little representation. I doubt anyone that matters would care if they have what little power they do have reduced.