Just in case you were planning on it, please don't point to the fact that about 40,000-60,000 have died as a result of the Government taking action, when the prediction that you are calling "wrong" was made based on the Government taking no action at all. It shouldn't be difficult to see the fallacy in that argument.
The Ferguson paper predicted:
1. Something in the region of 500,000 deaths over a two-year period (another point worth noting, then: we've had less than six months of this!) if no action was taken;
2. Something in the region of 50,000-120,000 deaths in that same period assuming social distancing, home quarantine etc;
We are very clearly in the second scenario. I don't think there's a case for calling the prediction "very wrong" -- not based on what has actually happened, at any rate.