Yeah, there is that; and this can probably be circumvented by editing auxillary_meanings. There is currently no UserScript for this, but when added “each” as a synonym, it can possibly make “each” not marked as wrong.
Nonetheless, un-overridable, hidden, blocklist (or warn, but turn to wrong when added as a synonym), is quite problematic.
Personally, I would prefer that Radical meanings always accept Kanji variants, even if they are also traditional radicals. The visible ones and the order might be different, or the first one (shown in Lessons / Info Page) might be the different.
Otherwise, non-Kanji radicals (or unpopular Kanji radicals) may accept nearest Kanji’s meanings as a synonyms.