Frankly, I feel like this is very similar to the cable argument that's popped up over the ages. At the base level, the technology we use between pickup and amp is very simple. Added conductance can roll off highs, if you have long cable runs but I think it's pretty negligible when listening/playing in most situations. But with a cable, or a jack, it's not like going from copper phone lines to fiber optic. They've added a redundancy point, but I'm not seeing any measurable info on how two contacts is better than a solid single point. And, the connection is only as strong as the weakest link, so what jack is in the pedals, or in the amp input? I can understand an argument for a jack that grips a cable better, keeps it in place, but I don't see how that translates to "cleaner, stronger, and clearer" signal. Or an EQ shift.
Love a Birria Taco, and a birria quesataco, woof, so good. I don't follow sports, but went to a great Superb Owl part today and made carnitas, brown sugar an cinnamon style, a fantastic recipe that only takes about an hour to make.