I just know that taste wasn't there, I added Sorbate and K-Meta and all of a sudden, funky off taste. I added Sorbate to my first few kits (Cab Sauv and Caberlot) and did not notice this taste until the Chardonnay kit. Perhaps its just something in Chardonnay or this Chardonnay kit.
I am hoping time will make it go away like you say. I agree with you on the addition of it anyway, they don't use it in commercial wineries, its just an added insurance policy so to speak and it's not normally detected at the low levels we are using but still, it's there and even my wife noticed it right off the bat and said blindly it had a funky taste/smell.......