If it were me - I'd pressure the dealer saying it's unfit for road use. Embellish a bit - tell then you were nearly rear-ended etc. Tell them POINT BLANK you know it's NOT JUST YOUR BIKE. The internet makes things like this very visible.
Suggest unless it's fixed you want your money back. See if they have an older model.
tbh I' was half thinking of moving to something different (maybe a Trophy or Guzzi Norge) - but anything new (that interests me) here IS now locked down. So I'll wait until I see what problems raise their heads.