This Nikola thing looks pretty weird indeed, but to be fair, Musk's name for his company is also not very original, since he (or whoever) also just took the dude's name even though he had absolutely nothing to do with him.
A second company then copying exactly the same association? Different thing entirely.
There are times I'm glad to have misjudged someone.
Well, in the words of Batman when asked about his superpower, "I'm rich".
It's OK to simultaneously believe that "Elon Musk is very effective at growing engineering businesses to the point that they disrupt entire industries" and also that "Elon Musk is not as smart as he thinks he is, and his tweets are embarrassing".
https://fortune.com/2018/12/09/tesla-name-faraday-elon-musk/