I think my main point is that we shouldn't straight out dismiss it with "you can't do it" when it's a little more complicated than that. Infeasible I think is the more accurate statement.
I know engineers like to spec brand new materials due to liability and other reasons but I've been hearing a lot lately about reusing foundation elements. There's a lot of testing that's supposed to happen before you do so. OTOH, in situ testing has advanced by leaps and bounds. It may be that the foundation element of wind generation is overstated and the lifetime with reuse is much longer than currently thought. My understanding is that they reused foundation elements last time they reworked 794, for example.