I just wrote this in another thread, there are no “official” japanese radical names, only nicknames.
while for @FrostWarlock learning many of the first radicals will do almost nothing,
i’m not so sure that knowing 1000 simplified chinese Hanzi will mean that you know all or even most of WK’s radicals for the later levels. And even early radicals like ｲ leader will turn up in complex kanji and their mnemonics.
There are very few radicals per level, so i’d still recommend to learn the “stupid fake radical names” (as someone once put it), because they will enable you to understand the mnemonics.
Without these, you have to make your own mnemonics for every kanji, or learn completely without mnemonics, but then you don’t need WK.