THAT IS AWESOME. great thing about epoxy like that is its easy to repair if it does happen. A customer of mine had me tile his entire 3 car garage. He put some double sided tape and a rubber pad down for his motorcycles. his argument was that if he parks somewhere his kickstand gets asphalt and rocks stuck to the bottom and the same thing might happen to your kick stand attachment as well. The story of the bottle cap stuck to the bottom of a magnetic tank bag scratching the tanks paint comes to mind here!
I have done a few dozen counter top epoxies before and i can tell you that if that is a quality epoxy, there is no way you are going to damage it unless its a very aggressive thing you do like try and rotate the bike with gravel stuck to the bottom of your kick stand and 9/10 times it can be buffed out easily.