I have to agree with you David, a seperate line for resort guests entering the parks would be a good idea, as it's only a case of checking the parking permit.
There are many benefits to on-site guests, extra magic hours, Disney transportation, the theming in each hotel... but none of these are obligatory. Lots of people choose to drive for the convenience of not having to queue for buses, the ability to go on somewhere else eg shops after leaving a park etc. Having a seperate queue would keep more traffic moving smoothly and I'm surprised Disney have not thought of it.
Another good day for you David. But fancy not staying to watch the Norway film!
The one thing that annoys me at MK is the long winded way of getting from the car to the park. I guess it's because I am so used to DLRP where everything is walking distance from the Hotel