There is a point in distinguished a formal proof from an intelligible one, notwithstanding the fact that one can, with effort, be extracted from another. That's a key point of the discussion that we mathematicians are having now, and fits into the bigger question as to what it means to gain mathematical understanding. In fact, Tao happens to have some older posts about this himself. The naive formalist reduction that you are making is not really bringing us forward in having a useful reflection about this, as the discussion is already beyond that.