All the $137M award says is the Jury found itself really pissed off at Tesla. It's basically a notice that Tesla might consider settling these types of claims in the future instead of wasting the Jury's time.
Or they will keep handling these claims the way they always have: they go to mandatory arbitration which either decides it is not racism or awards the claimant a small amount, and in either case Tesla doesn't take any serious action to prevent future occurrences.
This one only went through the courts instead of arbitration because it involved someone who they did not have under an arbitration agreement.
I'm not sure why they did not have an arbitration agreement. The person was a contract worker employed by a staffing agency rather than directly employed by Tesla, so maybe Tesla thought for some reason that would protect them?