Well indeed and like so many of these things you may never ever have a problem again. But were someone to report your name again, its clear that against your account you were given a warning saying it was inappropriate. And the course of action they take against you would escalate up from a name change instruction. Either a warning against your account or a temp ban and a warning.

I think with Blizzard its like this. If you break the law IRL and you go to court, the court will tell you that ignorance of the law and not knowing you were doing anything illegal is not a defence and wont be taken into consideration. With Blizzard they accept that there are grey areas - for example you might be from a country where a potentially offensive name isnt slang where youre from. So they give you the chance to change it and are lenient. You get the benefit of the doubt.

But if you then go back and repeat the same offense (what they consider an offense) they tend to take very very unkindly to it because they have given you their position before and you dont have an excuse. They have already done it the nice way and given you a fair chance.

Not judging anyone or anything they have done just outlining the risks you take. In these situations, Blizzard is God and their judgement is final. You wouldnt want to make God angry now would you? :P