I will agree with most of what you say. I guess we are one of the exceptions as we love warranty work at our dealership. For it to be successful, the dealership has to be set up properly, or as you say, the requirements to be reimbursed can overwhelm.
We are the largest dealer in our area by far, and we have 3 people who do nothing but handle warranty claims. Each manufacturer has their own little nuances, and some give better flat rates than others. From my experience you can look at how manufacturers are regarded in the RV community as far as reputation, and apply it to warranty claims as well.
The biggest frustration we have is some manufacturers not willing to pre authorize a repair. We have got burned on this more than once by spending countless hours on a repair only to be authorized a third of the hours AFTER the repair has been completed.
Brian and Tammy
2014 Fleetwood Bounder 35K
Mercury Mariner Hybrid
Blue Ox Baseplate, Blue Ox Tow Bar, Patriot Braking