It means water pressure will build up on one side of the pool (the low side) until that side fails, creating a mini-Niagra falls. If the low side is toward your house, you'll get a flooded basement. If it's toward your neighbor's , you may get a lawsuit. EasySet donuts work best when the outward pressure all around is even. Anything more than 1" difference is probably going to fail. I think 1/2" is really the safe maximum difference.

What I would do, is dig down a couple of inches on the high side. Get it level, then put mason's sand over everthing to get it VERY level.

Or, since you only have 2", you could build a low-side retaining wall using a single row of retaining wall block--they are about 5" high. Put down landscaping cloth, and fill it with sand, and level it.

Then, using the EasySet tarp, cover the sand with it and put the pool up. I added grommets to the tarp using a grommet kit from a camping goods store. I like the plastic grommets better--they don't rot and they don't tear as much.

While I'm a big fan of EasySets as a beginner's pool (for learning pool maintenance) a MAJOR hole in the information they give you is the need and importance of a level site. Intex plays this down almost criminally. I learned the hard way and had to build a platform that rose about a foot at the low side--for a 15'x3' donut. I used a lot of decorative rock from when we rebuilt our fireplace, but I didn't think to use the landscaping cloth--so every season I had to replenish and re-level the sand.