I think the theory is that the power cable creates a magnetic field around it that could interfere with the ultra precise electronics and what we are looking at is shielding for it. It could be complete bullsh but there is scientific reasoning behind it. It’s for people who pay premium to reach that final 5% and I have some weird kind of respect for such passion. When you are paying north of tens of thousands of dollars for a system, the expensive cable is the least of your problems.
That can’t be said for people who pay several thousand dollars for a premium hdmi cable that is supposed to 4k-ify a full hd signal. That what constitutes as snake oil in my mind.
if you ever find yourself craving for a tool from another brand it’s possible to have an adapter for the battery of other brands. Don’t ask me where to find them tho, I’ve just seen them in the wild here and there.