I could see where a slightly more robust solution could really work. Lay down a film (thin-ish plastic/spray sealant that would create a semi-sealed pool on the bottom of the pothole), then fill in liquid from a tank, then apply an epoxy on edges and then a kevlar mesh on top. Then you'd have a decent surface. Especially if the liquid was more like a "gel".

I'm not an engineer or a scientist--there are likely loads of reasons the above is impractical.