I certainly would not do anything to disconnect half the drivers for so marginal an effect. I get it, and I would have been on your side back in the day, but, after operating articulateds for 30 years, I found out long ago that this "synch" problem just does not visually exist for me at scale road speeds (and I don't mean 60 smph+ - I mean typical and accurate road speeds).
I was watching a modern video (the UP excursion Challenger) the other day (with actual sound, of course), and the out-of-synch rods and even sound were fleeting and hard to see above yard speeds - and sometimes weren't even there, of course.
My complaint is out-of-synch model compound articulated (the "Mallets") sound, which never went out of synch in the exhaust because only the 2 low-pressure cylinders exhausted to the atmosphere.