No, it's a compromise that explicitly accepted it's poor approximation of the popular vote in exchange for getting the slave holding states on board with stayin

No, it's a compromise that explicitly accepted it's poor approximation of the popular vote in exchange for getting the slave holding states on board with staying in the union by allowing them to partially count slaves towards federal representation while still not treating them as full people who could vote. Now we're simply left with a poor approximation of the popular vote. I fail to see how the migration of black people after emancipation makes that better. If anything their migration to north east cities while keeping the electoral college means that they continue to have less federal representation.