I can certainly understand this. First, when RV's come from the factory, they are not set up for use. They come with "Assembly required" by the dealership. The dealer has to finish setting up the unit before the new owner can take possession. This means everything from installing the battery and propane tanks, to removing plastic covers from mattresses and dinette seats, to laying carpet in Toy Hauler garages, and sometimes, even installing furniture that's just simply boxed up. The manufacturers depend upon the dealerships to finish the job and all the little details.
Someday, folks will finally figure it out, buying an RV is NOT like buying a car or renting an apartment. They are not ready to go directly from the factory, at all.
Now, if a dealership gets a flood of new RV's, and they have only so many number of employees, yes ... it takes times to get to each of them. This is just the nature of the business.
I wish everyone who own an RV could do two things. 1: Spend 2 days working at an RV manufacturing plan. and 2: Spend 2 days working at a dealership. Doing so would open your eyes to the industry.