Yes, if we could ever produce these miniature black holes, Hawking radiation would keep them from doing any real damage. However, isn't it worthwhile to see how and if Hawking radiation is actually a sound model before we just go whipping up black holes in labs? We are being a little too cocky about what we supposedly "know" what will happen with artificial black holes. I love the pursuit of scientific discovery, I'm a huge science nut myself, but is it really worth betting the fate of the entire earth on the knowledge that we are not 100% certain that Hawking radiation is a physical certainty that will keep our hides from being pulverized into a tiny little singularity at the center of the earth?