Was a silly comparison then, still silly now.
They may share some thematic elements etc but they're quite clearly different. At least to those of us with any time around little kids. It's like comparing an Archie comic to the darker, more young adult oriented 'graphic novels'.
'Parental guidance' and 'children' are both very ambiguous FWIW.
I'd almost let my near 4 year olds watch HP1, not even close with LOTR.