What I would say to you is that your obsession about ATRs and icing isnt healthy (not the first time you have mentioned it on these forums), especially if you have not operated one in and around icing conditions or at all for that matter. Yes, I have flown them.
I think any turbo-prop operated for prolonged periods of time in Severe Icing will 'bite hard'. Should I mention Colgan Air? There are no aircraft that I know of certified for flight into Severe Icing Conditions. Happy to be corrected.
But back to the twisted tail of doom and w8s VNE 4g pull ups.