The avarage user doesn’t need all the buttons accessible at every moment as such are willing to trade convenience for space saving and cost reduction. Some people though mainly professionals with hyper specific niches go the opposite direction and trade space and cost for oversized keyboards in the name of efficiency.
Belive it or not just like click switches, large keyboards still popup within the mech keyboard community. Hyper 7 being the most well known (and has a group buy currently going) but there’s also the wombat 200% which features twenty rotary encoders. Some people have been getting the best of both worlds by utilizing a modular mindset. A 75% keyboard with an external numpad and macro pad has the same functionality as a battleship.