They've updated the stats but the tone stills seems to remain from the old version. It's not quite caught up with the reality of modern renewables expanding greatly as their costs decline.
These are deaths per TwH, capacity expanding won't change that.
The one thing that will change the death rate is if the capacity reaches the point where peak production exceeds demand. (Remember, we have no practical means of storing large amounts of electricity, the closest we have wastes at least 1/3 of it.) The thing is the deaths are from construction and maintenance, not operation, and thus go with nameplate capacity, not power generated.
