I don't think that fair criticism on that point. As far as I understand MIRI did make the biggest survey of AI experts that asked when those experts predict AGI to arrive:
A recent set of surveys of AI researchers produced the following median dates:
for human-level AI with 10% probability: 2022
for human-level AI with 50% probability: 2040
for human-level AI with 90% probability: 2075
When EY says that this news shows that we should put a significant amount of our probability mass before 2050 that doesn't contradict expert opinions.
When EY says that this news shows that we should put a significant amount of our probability mass before 2050 that doesn't contradict expert opinions.
The point is how much we should update our AI future timeline beliefs (and associated beliefs about whether it is appropriate to donate to MIRI and how much) based on the current news of DeepMind's AlphaGo success.
There is a difference between "Gib moni plz because the experts say that there is a 10% probability of human-level AI within 2022" and "Gib moni plz because of AlphaGo".
DeepMind's go AI, called AlphaGo, has beaten the European champion with a score of 5-0. A match against top ranked human, Lee Se-dol, is scheduled for March.