I think the survey (if I understand it correctly) is more focused on the quality of service you get from the dealership when something does break down than on the quality of the vehicle itself. Of course, if our vehicles were as reliable as a Lexus we probably wouldn't have to ***** about our dealers' service dept. so much... But I kinda agree with the survey that, among luxury brands and speaking in general - I am sure there are exceptional dealers out there somewhere, although I have yet to find one here in SoCal - Land Rover dealerships are the lowest common denominator when it comes to quality of service, customer friendliness, parts and service prices, loaner policies, etc. They would be doing OK among mainstream brands such as Chevy, Toyota, Ford, etc. But, as a luxury brand, with prices to match, Land Rover dealers just are not in the same league as the other brands in that list.
But, as long as people keep lining up on waiting lists to get a new Land Rover, I guess that's all that matters, they probably don't care much about silly surveys... Maybe when sales of new Land Rovers aren't so red hot anymore, their customer service will improve.
Personally, I steer clear of local Land Rover dealers for any services that don't involve warranty work or recalls. Around here act like they are doing you a favor when you ask them for a loaner, their prices for garden variety stuff such as brakes and oil changes range between ridiculous and outrageous, and in the past it took at least a couple of visits to fix issues that they should have fixed the first time. No thanks, I trust my local indy shop 100 times more, even though I may need to get a rental for a day or two.