The Ride-On folks are doing what's commonly called CYA, leaving it up to the customer to first read their little blurb and then be knowledgeable enough to know if their particular wheels have TPMS sensors and if so could they be affected. Unless someone changed the basic design used in these sensors and I missed it, all the sensors I'm aware of have a small open port to facilitate air flow to the internal sensor. Tire sealants can easily plug those small holes. In other words, a total crap shoot. In the auto business a single wheel sensor can cost up to $200, the type Harley uses run about $100 each. If a sealant damages a sensor, warranty won't pay to fix it and I'm not certain a contaminated sensor could be reliably repaired by just cleaning the port. Add to that the fact that most sealants tend to damage rims over time (corrosion), and leave a big mess for the lucky person who gets to change the tire the next time. Sealants have their place I suppose, but at least for me I choose to not use them for street vehicles.
JMHO -Jerry