I have several comments here.
1) Pat made a bad word choice. This happens to anyone to speaks extemporaneously. Sometime you say the wrong word (i.e. incorrect word), sometimes a swear word slips out, sometimes you use a harmless analogy or expression you shouldn't (e.g. using a baseball phrase like "bottom of the 9th" in front of Europeans who have no idea what that means).
2) It seems very unlikely that this came from a place of bias. He has said it came from a place of ignorance and while it does seem like he could stand to learn more about black history (frankly, most of us, including POC could as well), I do take issue with the objection to the actual words used (see "C" below).
3) This appears (based on the statements of other players) to have been an isolated incident (see #1) not a pattern of behavior (like at Iowa football). As such, it seems like PSU handled it adequately.
Additionally,
A) If you think your coach doesn't relate to you to the extent that you uses accidentally hurtful words, you can transfer. He did. Good for him; I hope he excels both academically and on the court.
B) What was the purpose of issuing that public statement other than to seek to cause harm to Chambers? Did he honestly think Chambers was some sort of racist menace from which others needed to be saved? That doesn't seem to be supported by other player statements. He got what he thought was best for himself (a transfer). Why stir the pot?
C) I realize that many different kinds of words can be hurtful to many different kinds of people. But it is all about context. If I go on and on about how much I love my German Shepherd (full disclosure, I do not have a German Shepherd) would you jump to the conclusion that I hate black people because German Shepherd police dogs were used against black civil rights protesters in Alabama in the 1960s? Similarly, if I talked about "trying to drink out of a firehose" (common expression for trying to learn a lot at once) would you think I was racist because fire hoses have been used against black civil rights protesters? If I said my favorite Clint Eastwood movie was "Hang 'Em High" (in which his character survives a lynching) would you assume I said that with racist intent? In the absence of any other data (i.e. past racist statements), I would hope the answer to all three examples is "NO".
The bottom line is that someone who is so inclined can find something to get offended about every second of every day, whether that be a statue of Columbus or the fact that you can't spell woman without "man" or the fact that "rock music is culturally appropriated from African Americans". You are allowed to be offended, but that doesn't mean everything in the world needs to change to accommodate *you*.