Then all Musk needs to do is not allow Tesla to "come to find" out that LIDAR is necessary before the technology has advanced to such a degree that they can ret

Then all Musk needs to do is not allow Tesla to "come to find" out that LIDAR is necessary before the technology has advanced to such a degree that they can retrofit the Model X and to do so when the cost has come down sufficiently to afford it. Which is what he's currently doing. When they do finally admit that LIDAR is necessary, Elon will play the "no body could have foreseen this situation and we were operating under the best knowledge at the time" card. He's bullshit all the way down.