A midget riding his Kirk horse is not silly?
What about Spock-o doing the Flamenco around Kirk's head? No wonder Shatner and Nimoy protested about the script.
These were humiliations. They weren't included to be "wacky". When the flamenco dancing was going on, the point was that they were threatening to force Spock to smash in Kirk's skull. It's all Caligula style excess, except that they had to limit themselves since it was prime time TV.
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So Shatner and Nimoy complained... so what? They're as capable of missing the point of a scene as anyone else.