I like Todds videos, he's a great guy, approachable, and does know a ton about different fixes with experience- but on the grounding issue for Gottlieb, I'm going with Clay on this one.
It really does not take long to do the recommended grounds, and after you're done, it has a solid feel to it, because you know you did each one and they're in place, where as the lone ground wire in that connector is relying too much on a good thing to not go bad. It's pinball, things go bad.