I slid some heatshrink tubing over the AC wires and pushed them out of the way. It seems to be OK. I've had the set playing a few hours with no HV problems. I should melt some new wax over it just to be safe.
Here's a production run #5 chassis (this set is run #2). Copper plating, but same bad design.
Finally, by production run #14 they had the sense to relocate the AC plug.