There's a lot of bullshit in wine tasting. It's not total junk but double blind tests show experts assigning different flavor profiles to the same bottles/vintages and vice versa and non-experts coming to many of the same conclusions re: quality which mostly comes down to a lack of balance between acidity and sweetness. With DLSS vs FSR2, there is an objectively measurable difference in quality.

Apologies if you felt belittled. The "grandma doesn't notice motion smoothing" metaphor was used because of it being a shared experienced among the technologically savvy, though I get how it could be interpreted as insulting. Nothing wrong with being a grandma, they don't know any better.