The FWK Chardonnay is too young, and it's different quality than the MV Chardonnay.
I made a WE Australian Chardonnay for my son's reception -- great at the 14 month mark when it was first served, but was fizzling by the following summer (20 months?).
Early on the FWK Chardonnay was heavy in quality -- it makes me think of one I had that was fermented on the skins. However, it was better at the 18 month mark and was doing fine at 24+ months when the last bottle was consumed.
Give it more time. Not sayin' you're gonna love it a year from now, but time will improve it.
My son made the FWK Riesling a few years ago, it was pre-carbon (I think). I had some recently and it was quite good, better than it had been.
Having recently fermented a white on the skins for the first time in decades, my current thought is the FWK concentration process produces white concentrate that is more like a red. This is not everyone's taste, and it does take more time to age as it's a heavier wine.