We will never know the true statistics. IF everyone was tested, symptomatic and non-symptomatic, the death rate would be well below the seasonal flu. But that wont happen. Yes, we are doing all the right things to stem the tide of this virus, but it really is not as deadly as they claim.
We don't live in a world of perfect information, but we have enough information to make educated predictions and take appropriate action.
I don't see any evidence suggesting this is weaker than the seasonal flu, but much evidence indicating it's considerably worse.