Hey BrAzkhor,
I'd agree that nothing inappropriate immediately jumps out at me with that name, especially since you're able to grab it with a quick change of the capitalization. Our various filters may prohibit words or parts of words that have been misused in the past as well however, so it's not necessarily an issue with your particular name.
We aren't able to see or modify the filters themselves via the forums, but please take a look at this page for more information on how the filtering system works.
EA - Content Moderation - Electronic Arts Official Site
This also has a link you can use to appeal a situation (like this one) where it seems to be blocking a name it shouldn't. Please feel free to submit a request there instead so the appropriate team can take a look, thanks!
If we get something wrong, in text, image, or voice moderation, we want to know about it. Let us know at https://help.ea.com/help-tools/appeal-filtering-decision/ so that we can improve our filtering toolset.