No, IMHO. The failure curve for electronics looks like a bathtub curve. Infant mortality occurs mostly at the beginning and wear-out mechanisms occur after many, many years. It's likely that you'll detect any infant mortality issues within your warranty.
The length of a company's warranty often has little to do with the reliability of the system. Competitors will often use this point as a marketing advantage, however, I don't think there's much engineering, testing, or quality assurance that goes into making this decision. The folks who are trying to gain market share on a competitor often offer longer warranties as a selling point.
I would expect the failure rates for these systems to be very close to one another.
2015 30' Classic, "Chez Nu"
2014 RAM 2500 w/Cummins Diesel
ProPride Hitch, 400 W Solar