With anime people are wayyy picker about release groups because they come part and parcel with fanmade translated subtitles, preference for which track is the default for dual-language releases, are all the honorifics written out, etc.

You either have to commit those preferences to a tag that you try to remember to put on everything (fiddly), or you just commit to them being on everything you download regardless of whether or not it is anime, which can cause weird selections when sonarr is sourcing western media.