The context is also different. One Piece has a lot of fruits that are canon, a lot of FS, different weapon grades, ships, etc etc.
Bleach literally only need the spreadsheet for each race and a general description of rules/limits of certain stuffs. Your powers are literally custom-made, whether you stole it from a canon character or from another anime etc it didn't matter lol. Only thing we care about is if it is broken/OP/Gmod but anything goes aside from it.
You want a power that summons all kinds of animals? No problem. You want lava? No problem. As long things are thematic to the power you are making it is fine. (This usually means no multi-elemental shit though.)