Work bench efficiency vs. real world efficiency. Power, fuel economy, and packaging are all that matters when driving the cars. Compared to the A10 LT1, the A10 Coyote has comparable gas mileage, comparable power, notably less torque, a higher COG, and is physically gigantic in size.
Check out the side by side pics in this article. A blown 376 LSX crate engine takes up less space in the engine bay that a stock Coyote. Who cares how big the pistons are?
https://www.enginelabs.com/news/ford...-hp-per-pound/