Love that throwback to when Vanilla suggested to swap those two because 動 is not only simpler, but also more common.
Adding こんにちは took priority before trying to improve the kanji teaching process i guess.
Teaching kanji by frequency sounds good on paper, but it for sure wouldnt work for me or majority of people. If i saw 議 on level 1 i would probably think learning kanji is impossible, but seeing 言 羊 手 kanji before that made it much easier to learn, despite 議 being more common than those three.
WK does decent job of compromising simplicity and frequency as is, it just needs slight adjustments like the 動 働 swap or maybe somewhat lowering level of some very common kanji despite their complexity.
Also by the way, 60% does sounds impressive, but it is actually so low that its unreadable anyways, plus most very common words arent usually very descriptive (like the 議 i mentioned), so understanding them usually helps less with understanding the text than some rarer (but still common) kanji. By the point you reach about 90% where reading starts to be viable (just my opinion), youve seen all the most very common ones anyways.