To be fair, the guy is genuinely talented, and even right about a number of things, but everytime I see writings of his posted on the 'net they give me the urge to shove a pie in his face. The man is just such an egocentric jerk, and while he certainly had an impact on the industry for sure, he way overexxagerates ("Ren and Stimpy" didn't start the trend of creator-driven shows. For one thing, when it premiered there was already a creator driven show running by a certain Matt Groening. RAS was a big influence too, but it can't lay the claim to entirely starting the trend. The trend was already slowly starting). He also needlessly insults an animator who professes to be a fan and wrote his piece as kindly as possible as "retarded" simply because he disagrees.
This may just be a relatively low moment for Kricfalusi, but it does seem to, unintentionally, tell an awful lot about why some people at Nickelodeon may have had trouble working with him. And that's coming from me, someone who rarely finds reason to side with big business executives.