Ugh these motherfuckers get literally every grain of truth wrong. Trees do prevent flooding(studied to be an arborist and utilizing trees in urban environments for cooling and flood control), BUT the amount of trees cleared for wind turbines is negligible compared to what we've cut down for parking lots and industrial complexes(pavement increases flooding).
Besides, no amount of trees is going to take care of that amount of rainfall in that period of time. Even if everything was forest there's only so much they can absorb. Some of them would uproot and tip over from the ground becoming so water logged. I've seen it happening in our forests from an unusually wet summer. Entire portions of forest where the trees just fell over from too much water in the soil after 3 years of drought.