Of course it’s possible. Just not financially viable, according to corporate logic. It’s not about profit. It’s about ever increasing profit. So what do you do when the sales have reached their peak and stopped increasing? Lower the production costs and/or increase prices.
I’ve worked in the video game industry for a few years, both at and with large corporations as well as smaller studios. Game optimization has rarely, if ever, been a concern for anyone. Usually, as long as the fps only occasionally drop to 25 on high-end systems - it’s good enough.
To be clear, smaller game studios care significantly more about optimization/accessibility. There’s no denying that. However, with their limited resources, sometimes there’s not a whole lot they can do.
What you’re asking for is completely reasonable and would be great. But it’s just not gonna happen. Most studios prefer Unreal, because it lets them outsource a lot of work to India, and potentially cuts the development time ever so slightly.