Okay, hold up there hot cheeks. First off all, that video is not the only source claiming that smash was originally based/inspired/whatever by pinball.
Secondly, I was talking about the items as well, and the fact that all stage hazards threw people around back and forth, like a pinball game. There's an item in the game called the BUMPER.
And what do you mean the barrel isn't a reference to pinball? That's clearly the case, as many pinball machines have a "savior" mechanic that attempts to give a chance to stop the ball from falling to the bottom. I'm not ruling out the fact that its a reference to DKC, as it clearly is, but in SSB's case, it's inspired by both.
If I misspoke, I apologize. But the evidence is pretty clear that it was inspired by Pinball as well.