Goku does not need to have 11 million attacks before he hits SSJ. He's already got 2 as of beta 1.1. The spirit bomb and the earth-like spirit bomb both dissapeer when he hits SSJ, and this would just add to that list. We should worry more about SSJ and SSJ2 attacks than unbalanced first form techniques that would more likely be abused than tactically applied.
True, in his fight against Pikkon he used some stupid technique he called "Super KaioKen" to pull of one or two hits during the battle. It didn't last more than a few seconds, and it was out of place with the rest of the show. Wouldn't you think he would have used it against Buu when he hit SSj3? Regardless, to balance it they would have to make it nearly useless. Goku already has enough attacks, and his ability to zanzoken while charging the most powerful spamming beam in-game cannot be rivaled by anyone else as of yet.