I used to believe impact is king. Lots of pros, announcers and good players say this, but it's more nuanced than that. Impact is important. Your shaft should have some forward lean, your hands should be ahead of the ball, you should hit the ball first, divot should be in front of the ball. These are musts.
But it's not the whole picture. How you arrive at impact and where your path and face are headed just after it are just as important. You could be coming into the ball way "dumped under" and have a path that's like +8. That's hard to control and subject to blocks and hooks. I might have seen myself on video face on, with perfect impact conditions, with a driver, bowed wrist, forward leaning shaft, hands ahead of ball, a look I used to die for, but I've hit a low bullet that would just barely clear an NBA center.
This is just one of so many common cliches to "simplify" learning the game. It's all about impact, hit it to right field, keep your head down, hit down on the ball, etc... Have they really helped golfers learn the swing, or have golfers learned in spite of them? Imho, it's time to dispense with these one liners along with that mystical golf pro that charges $30/hour and will fix you in 5 minutes.