The other problem with “x” as a logo is that it looks a lot like a close button.
The nerve of this guy to call his company "Tesla" after a genius that could vividly model his ideas. A genius that invented radio, AC power to homes, etc.
"X" sounds so stupid and he picked it because it makes people think "his" things are bigger than they actually are. My advice is to not use his products as he'll only produce further garbage.