Not all victories, or losses for that matter, are created equally. Either way, each one only adds a single digit to either side of the ledger, that is true. However, one could argue that divisional games are doubly important. Especially since the Steelers had already failed to hold home field in a Week 3 loss to the Cincinnati Bengals, a shockingly disappointing disaster of a game punctuated by the absence of both starting OLBs, T.J. Watt and Alex Highsmith.
Losing a home game in the division usually requires you steal a road victory at a later date if you want to contend for the division crown.