Your point doesn't really stand at all. Every potential (low, average, high) is defined by a set range. You recruited a guy at the very bottom of one range. He improved very slightly, putting him into another range. He'll still improve six or seven points (or whatever the low end of average is).
Anyone who has played the game more than one season understands there is no distinction in messages between the low end of average and the high end. We all know the risks of recruiting average. You're coaching a D1 team with almost 300 games under your belt. I know you know that average means anywhere from 7-20 (or whatever) and that the recruiting message does not distinguish between the two ends. If you don't, you shouldn't be coaching D1. You took a chance, you lost, and now you're pissy about it.
You can be ****** about it, but you should at least own it and acknowledge it for what it is.