One doesn’t like mnemonics with violence, another one doesn’t like mnemonics with sexual innuendos, another one doesn’t like mnemonics with gross stuff, another one doesn’t like mnemonics with words like “midget”, another one doesn’t like mnemonics that deal with religion…
Nowadays everything offends somebody. If Wanikani team decided to cater to every whim, they wouldn’t stop remaking every mnemonic all the time.