I've commented before, I agree that it's not suitable for all audiences. None of the episodes really are. I don't intend it for kids, even if it is "clean".
But blood does not necessarily equal violence (which is what is rated), and "Hell" or "Christ" are only profane if you believe in an almighty Lord whose name can be spoken in vain, as opposed to the REAL cuss-words, which are profane to anyone who speaks English. But there are none of those words here, and neither will there ever be.
Unfortunately, I would have to "lie" about the violence or language just to get it something other than an "Everyone" rating, but I don't agree with replacing one false title with another.
BESIDES. Isn't the comic about Blockhead? Isn't it most important that he stays clean, regardless of the world around him? He will never be profane. He will never kill or seriously injure someone.
Anyways, yours is still a very fair and honest review, so thanks for writing one for me! I've noticed that Ep.5 was funnier for people who haven't been watching the series very long, so I want you to keep your faith in me, if you still have any. Blockhead: The Feature is going to blow your mind and make it all worth it, I promise.