My 1st thought is what condition is your paint in? Are you waterless washing a vehicle that’s been properly clayed & protected? If so the waterless washing experience should be pretty smooth.
The only time the experience is “grabby” is when attempting to waterless wash a vehicle with paint that’s not smooth [aka hasn’t been clayed & protected]
If your vehicle is for example coated, and you sprayed that amount of Uber on the panel the wipe should be rather smooth and not something I’d describe as grabby even though we all have different ways of describing things.
Edit: I just read your OP and see that your vehicle is ceramic coated and you’re attempting to clean off light dust. Based on that and you sayijg you use an average of 1.5L of Uber Rinseless diluted @1oz. per gallon I’m having a hard time with it being described as “grabby”. Interesting.