Pilots generally over report ice and turbulence. Just because a pilot says there is a lot of ice doesn't mean it was beyond the capabilities of the aircraft. A nice feature on the Q was an ice spigot. It is designed to collect ice and not remove it in order to let the crew now now much cumulative ice they have flown in. That thing will pick up a lot of ice, but when you look at the wings, they are clean because the boots can remove it. When a Q pilot talks about ice, they are usually looking at the spigot. And as said before, the power was never brought all the way up.