>>109161618More likely, Clarence was pretty fucking bland and awful compared to the Louds, which is why it failed.
>>109162117 does make a point in that if a show is too down to Earth, it can be boring, whereas things like KND, Dexter's Lab, early FOP, Zim, had a mix of down to Earth elements and things quickly escalating out of control and becoming cartoony.
TLH is a slapstick heavy cartoon that lacks some of those really higher tier cartoony elements (unless you count Lisa's Dexter like experiments), yet isn't devoid of them either, but pulls it together mainly because the voice actresses for the sisters are really fucking engaged into it and make it entertaining.