Dishonest it is. I'm talking with some mechanics & looking into the idea that heat transfer from the rotors to the hubs could be a problem. Depending on ones braking habits heat can cause the grease to fail if it gets to hot.
Schaeffer 274#2 grease made for wheel bearings. It contains moly & works great. Check it out on line & download the TDI sheet, that should answer your questions. Chassis grease is not meant for fast moving bearings such as car, truck & trailer applications. Don't use to much, 6 pumps to start, spin the hub & add more if needed but, do not overfill. You need to leave an air apace in there to get rid of heat as it builds up. The bearings should roll not slide. If you can see the sensor & it has to much grease take a Q tip & wipe it off, a little grease on it should not effect its operation.