Guess I'd at least ask them about it, so in a courtroom, you can say you asked them about it...
I Googled "too much WD" and read this: “Insufficient weight distribution is obviously undesirable. Too much weight distribution is also detrimental. With too much weight distribution the rear tires of the tow vehicle can lose traction allowing the trailer to push or pull the back of the tow vehicle around creating a possible "jack knife" scenario. Too much weight distribution can also overload the hitch, receiver, or trailer frame/coupler.”