Most of these manufacturers use products that are purchased by them based mainly on PRICE.
No different with "wheel bearing grease", on our Lacrosse right from day one all of the bearings ran warm to hot after a couple of hours on the interstate.
If you are going to run 5 to 7 hours a day on the interstate as we do running to Florida, always have the wheels pulled on a brand new unit and completely clean the grease out with a solvent and hand pack them with a high quality grease.
Our Lacrosse now runs cold to lukewarm with a re-pack of LMX High Performance 4X Ultra-Lube #10320 www.ultra-lube.com
Of course, you also top up the grease with 6 to 8 pumps of the grease gun on each wheel annually. Never mix two different types of grease.