"It may be doubted whether so small a number of men ever employed so short a space of time with greater or more lasting effects upon the history of the world.” — Sir George Otto Trevelyan on the Battles of Trenton and Princeton
So you're saying that whether OC East has a fortification or not, the drilled troops moving out of Schenectady would have to stop there because there's no fortification in Canajoharie.
And presumably, if there were fortifications in both Canajoharie and OC East, they would be able to continue to OC West and stop there.
Yes. They would stop because they had exhausted their movement allowance from Schenectady -- OCW being unfortified Wilderness would not stop them until Oswego.