It certainly does. Not a knock on Boeing[1], but my least comfortable flight ever was on a Virgin 747 from London to New York. At 194 cm (6”4) I’m tall, but not insanely so. I got a middle seat in the middle section where it was physically impossible to fit my legs. Thankfully, before even taxiing out I was able to move to a bulkhead seat in the family row. Since then I insist on picking the seats (emergency exit row ftw) when travelling with someone.

[1] Though I believe that aircraft manufacturers should require some minimal level of comfort on planes they make.

Ultimately they're making planes for the airlines to buy though. If the airlines say they'd rather fit in 300 people by making most of the rows cramped together than 250 people with more legroom, the aircraft manufacturers will make sure they account for that in their design.