The alc is not a big factor, the pH and TA would tell us that this is a fairly tart wine, so this is exactly they type that some can notice the sweetness and some can’t, depending on their sugar threshold and if they have had a chance to calibrate with measured samples.
Andrew Morris:
I think that each of the above reasons is part of the explanation.
I serve dry, VERY tart white wines and Rosés with fruit aroma and some claim they are sweet. Smells like something sweet means it is sweet is very common.
Another factor could be that some of the cheaper ones (others perhaps, too) might actually be slightly sweet. Lots of commercially available white wine is between .4-.6% RS. I test other wines for RS and am surprised from time to time with how much is there. Reds included.
I consider .2% or less to be dry.
Yeah I agree.