Let's review
Ok, one more time, real loud, for those in the back or who may be hard of hearing.
A scab is someone who takes another's job.
In other words, Polar strikes and someone flies a Polar airplane full of Polar "stuff". Then that's a scab.
An Atlas guy who flies an AMC flight in an Atlas airplane is not and can never be scab.
Not even if he crosses some arbitrary line in front of some arbitrary hotel.
Not even if you wish really, really hard. It just can't be. I mean whose job was stolen if I go to the hotel? The maid's? Give me a break.