I know brake bleeding has to be done in the order set forth in the shop manual but my question is - what happens if the order is not followed?
Motorcycles can be a bit different and not nearly so simple. Most vehicles have the single master cylinder fill at the high point and all bleeders relatively low and at the same relative level. Proportional valves, secondary master cylinders, front/rear master cylinders, linked systems, abs (optional), anti-dive valves, etc. make some bikes very step specific or you will chase air bubbles and soft brake action forever. The Wing isn't so bad, but do a Honda ST1300 in any random order and you won't accomplish much as far as removing air from the system.No matter what vehicle you're working on, the same rule should be applied.
Start with the wheel farthest from the master cylinder and work to the closest wheel.