Boring Company is also on the path to being successful, it's just not advertised much.
Solar roof - yes, this one I would mark as a failure.
Cybertruck - they're still selling, so not a failure. But not as great as originally promised.
Hyperloop - this could still come after boring company succeeds.
Nobody is saying he's god. But maybe, he understands engineering better than some commenters on HN, that's all.