Crankshaft loading is only part of why firing orders are selected as preference.

Sure a HO 302 Ford or mopar with a 7/4 3/2 swap will load the same crank throws at the same time but, I would hardly say from an engineering standpoint that one compares to the other. Maybe if you are strickly trying to engineer crankshaft load placement.

Intake manifold design and RPM is one of the reasons most engine builders I have talked to choose alternate firing orders.

None of this discussion has much to do with what the OP was asking.

Leon