Answer:
Because it had something vital that the Article of Confederation required.
Step-by-step explanation:
The Northwest ordinance carried the right which listed fundamental rights for people, which is in the constitution. Holding the rights to picking a state as being part of slavery or free state. It also dealt with expanding territory and encourage settlement. The Northwest Ordinance of 1787 by the Confederation Congress passed toward statehood for the areas northwest of the Ohio River.