Yeah I think there is the perception the average golfers decelerates or "quits" on putts. I think short back and accelerate through makes people feel confident or committed while a pendulum stroke feels "weak". Kind of like hitting a pitch shot, feels lazy while a full swing feels more structured.
Honestly, I don't think it's a misconception that average golfers quit on putts. I have seen a great many putters "quit" on putts, but just as many accelerate through too violently, trying to take the break out of a 7 footer and have 8 feet coming back, for example. I think it's mostly mental, in my opinion, and nothing more than a lack of consistency. People quit on putts when they are not committed to a stroke and make a hand or wrist adjustment at the last second to do what their "second opinion" says. It happens for all golf swings (trust your swing, right?), but it's tougher to commit to putts for me than full swings because it's such an effortless motion that I almost feel like I'm not doing anything. Human beings are control freaks by nature, and just letting a pendulum that barely relies on our bodies to do anything except let gravity take hold is a tough sell on my brain. At least it was, as I think I've allowed myself to miss putts, knowing that my stroke is pretty smooth and I don't need to try harder and force the ball in the hole.