Can't remember really, didn't watch it all that much. But he always did stay with Brain didn't he?

Dramatic emphasis is probably what the authors of the the show intended - the author of the essay is kind of biased, I'd say (a fanboy?). Even if you have to admit that some comments Pinky offered when answering 'Pinky, are you thinking what I'm thinking?' can be taken in an ... odd way.

Which is probably why in 'Real Adventures' they added a/ Jessie, Race daughter for Johnny and b/ a number of women who kept making suggestive comments. (Haven't really watched the original series).