Everyone is moving to turbos (and all the problems that come with that, including sensitivity to maintenance intervals, additional wear parts, pumps, waste gates, etc.) in search of a marginal mpg increase at the time of testing.

I averaged 17.1 mpg in my (turbo) 2024 Tundra before I sold it, and 17.3 in NA Ram 1500 before that.

Right now our family has a VW Atlas (3.6 NA V6) and a smaller Mercedes GLC 300 (2.0T). In spite of being 500 lbs heavier (and quite a bit bigger), the naturally aspirated Atlas does only 2 mpg worse...

Seems like manufacturers are doing things to game fuel economy tests under the perfect conditions... But the real world gains aren't there, and the real world costs are significant.