Indeed. I really don't have the time to be a guinea piggy for this nonsense so I've ordered 50cm of nitrile hose and a hollow M10 bolt with a 1mm thread pitch to suit the gearbox hole.
Going to carefully route my creation between the HV DC cables going to the inverter

and clip it up as high as possible above the tranny, original breather stuck on the end.
Hose is 8mm internal diameter so
should seal well with a couple of quality clips.
We'll see I guess, can't be much worse than the factory efforts to date.