Cloud Clutter, you need to relax a little. Your a bit outside the loop.
The current cyclic program at Eastern includes an unscheduled feather and a pitch jam as part of the matrix. This is where the higher than normal approach speed comes from. The Vref becomes 145 knots with icing on speed additives and the requirement for a flapless landing. The max tyre speed for the Dash is 139 knots. Hence the risk of a tyre blowing.
Not sure why you think that an unscheduled feather is a common Dash occurance. One by Air Nelson in twelve months of operations must be OK. Unless of course there aircraft dont do many hours.
I'm sure my colleagues will correct me but I cant recall when the last unscheduled feather occured on an Eastern aircraft. The same being one of the most experienced operators of this type in the world. The Dash's at Eastern never stop moving.