That’s valid of course but for me the issue is that when you’re starting there’s such a massive volume of things to learn that spending a disproportionate amount of time on a few dozen leeches is just not worth it for me generally. Unless I know that it’s a word that I absolutely need to know for something specific (a book I’m reading or whatever) I generally just undo my mistakes and push the word towards higher SRS levels if I see that it just won’t stick in my memory. I’d rather learn 10 new words than do 100 additional reviews of 四日.
When starting with a new language it’s very much a case of quantity over quality for me. Knowing 2000 works okay-ish generally beats knowing 1000 words really, really well.
You’ll have millions of opportunities to review these words by consuming native content anyway. It’s not like you’ll never learn 四日 if you don’t do it on WK, and sometimes getting the word in a meaningful context does wonders when it comes to committing it to memory.