it's really sad and unfortunate
i believe if the crews had known beforehand that they had Unreliable Air Speed, they would have flown the last known power setting and Pitch, ignoring all the other warnings.... i strongly believe they were very confused...
if they had recognised it as Unreliable Air Speed earlier , and just fly Attitude + Power, and maintained it until at least out of the weather, things would have been much better.
it's not easy to recognise Unreliable Airspeed...... and getting inside some massive weather leaves you very little time to stop and think ,before confirming what's the problem...
string of unfortunate events happening at the exact moment...