Oh, definitely. I've actually heard people rant about being given a paper-based guide for a game but no tutorial in-game. Are you serious? You'd rather have to go through 20+ minutes of someone telling you how to MOVE FORWARD than get a guide showing you legitimate tips and tricks?
I HATE tutorials. There is a bunch of text in a pamphlet, on one page of a website, WHATEVER to tell you how to press buttons. You don't need to waste anyone's time telling them basic sh*t they could figure out if they just push the few available buttons or look at the hotkey settings. Seriously.
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As for the no humanoid final bosses thing, I've seen plenty of those. I think a purely HUMAN end boss is kind of ridiculous, though. Oh, you want to fight an end boss that can be killed by a bullet between the eyes? Noob. I, personally, would want to turn into a demon-dragon-goddess when faced against plot armor, plot weapons, plot magic, plot holes, etc. If I had to face those as a normal human, I wouldn't last a second.