Thanks for the reference. A bit hard to counter it if the FAA approves the procedure.
It is not always possible to find deice fluids, and there is a push to restrict the use of most fluids due to the contamination they cause to the local environment. Hot water works, and that is a major part of Type 1 fluid, which is approved for light airplanes. Hot water and a couple of towels will get the airframe clean, although it takes a bit of time. Wing covers would be the best option.
I put my little airplane ( a biplane with plastic wings) in the hangar to thaw it out, was left with water on the wings which was pooled in big drops because I had (stupidly) polished the wings thinking that would help remove any ice (it did not, made it stick harder). I figured the water would blow off on takeoff.
The OAT was just below freezing.
After takeoff the airplane flew real squirrelly, lost all its stability, in pitch and yaw. Made me sit up straight! Had to be real careful, although lift off speeds were fine and also high speeds. Only the mid range speeds were affected. Landing was normal.
After shutdown I found that the water droplets had all frozen in place when the lower pressure due to lift being generated caused the temp to drop so fast the water instantly turned to ice. They were like Hersheys Kisses in shape, all over the wing and tail. So hard and sharp that if I had run my bare hand across them I would have gotten my palm cut. I was amazed that the airplane even flew.
I cleaned it all off to return to home base, the temps had remained low all day. I was left with frost, and could not get it all off, no matter what. As I cleaned one part, previously cleaned areas would frost over. There was mist in the area and although it was not being called, I think it was approaching freezing fog conditions. I got it all off except a few areas that I figured I could do without and polished them smooth.
The airplane flew pretty well, only a tendency to yaw instability (and this airplane has such a problem even when completely clean). It is an amphib and often flies with water on the wings, I normally do not experience any extra problems when operating on water, but I guess the water does blow off under those conditions.
Anyway, it is an interesting subject.