Well, just to be fair, that's something that would have happened with or without Tesla. You saw those prototype screens at auto shows like Detroit years ago. Crucially, the prototypes were all automotive grade.

In this case, Tesla simply wanted to be ahead of the curve. Worked for a while, then the known failure rate of the parts caught up.

Whether or not it was worth it depends on the strategic intent and whether or not that bet paid off. We'd really need more information to make that call. And Tesla is not going to give anyone on this thread access to the strategic and financial information necessary.