I’ll try but prose is not my bag. For starters, I don’t there is any increase in sweetness of the flavor, but maybe aroma. The largest affect, I think is towards the aroma. I think it resembles the aroma of chilled wort. It is also present in the taste but much less so than aroma. I don’t think it is “it” as I tend to think “it” resembles the mash aroma but it could be a part of “it”. I cannot imagine anyone would call this effect a fault.
I would be very curious of the effect on a malty recipe. This NGP was 86/10/4 2 row/flaked barley/acid malt and previous was a saison with a touch of chocolate malt for color (no malty stuff) so I would deduce the short boil might have a even larger effect on a recipe with malty stuff like munich.
Of course, this all could be confirmation bias but I don’t think it is.