I have not watched NBA basketball in years, but the NBA had the most vague definition of MVP going back decades.
What it certainly is not - since the 1980s or longer - is “best player”. Magic over Jordan in the late 90s set that precedent, followed by Karl Malone winning a few as a good but not great player.
This continued in the 2000s, with Shaquille O’Neal not winning as many as one might predict. I suspect that is still the case.