Game devs are overworked and underpaid af, so all those layers upon layers of abstractions just handed to you by game engines, at the cost of a ton of performance in order to save brainpower and time, look VERY enticing. Sure, you could spend more time and also spend more money in order to keep devs from leaving your company (because if you don’t keep giving your devs lucrative deals, they WILL jump ship as soon as they can get a better deal, that’s every job in tech) so you can maintain modular, decoupled, high-performance low-level code, but why do that when it’s just as profitable, even more profitable actually, not to?
But Nintendo, despite treating their consumers like shit, is EXTREMELY good with workers (especially in the context of Japan which is probably one of the worst countries on this planet for workers). They make good games because their employees aren’t overworked and underpaid as hell. They don’t have high turnover, they keep their employees over decades because they keep enough funding and effort into their current employees, rather than pumping all of that into hiring like most companies do. That’s why they can even exist despite the Switch being kind of garbage, why they can succeed where Sony and Microsoft are failing, because they attract and keep experienced, quality employees, so they can make quality games.
Game development & design can be one of the hardest jobs in the software engineering industry, and it’s the biggest entertainment industry on Earth by far, yet game devs have some of the worst conditions of any software engineers, dare I say the worst… So by buying shit games from shit companies, people are just affirming their shit practices.