I fully understand the design intentions to grow cars and crossovers. You need to expand the exterior if you want to keep constant interior space despite a bun

I fully understand the design intentions to grow cars and crossovers. You need to expand the exterior if you want to keep constant interior space despite a bunch of legally mandated engineering goals that cost interior space. I don't see what engineering goals are causing fullsize trucks to get so tall. They could have kept interior space constant with a very slight increase in width. NVH could be driving it somewhat but not that much.