It might have only been pushed in and not destroyed, but yeah, probably artist oversight.
pieeeeeListen to what daddy says ze!Mister sunny place is hot hot ze!That's why I told you ze!Little one!
That way's dangerous,
stop it no ze!Hwoooood!!!Lick LickYuuYuuLittle one!Reimu's tummy is empty...Tashty!Happinesh!Mwunch-mwunch!Marisa's too noze