No, the key difference is: Facebook isn't putting more effort into fighting anti-black discrimination; it's changing its algos to ignore anti-white racism that it is already capable of detecting.
I guess both are a slightly different phrasing of the same thing - they're aligning their moderation effort in some way, but I'm not sure why you choose it.
If it's okay to ask: has anti-white racism been a significant problem for you in your life? For example, are you a white person who experiences anti-white bias from people you interact with?