This reads a bit like "these poor sods can't afford to pay for my app, so why bother", at least to me.
However even if a certain device owner subgroup doesn't represent a potential revenue stream, you can as a developer still profit from also (or even primarily) targeting their devices.
Apps that will run on lower-powered devices will almost necessarily be leaner, and as a side benefit will have less complexity, less dependencies, and, ultimately, less technical debt for you as the developer to manage.
Or even just devices in high-latency environments. This gets missed in development so often. My experience is that 75% of apps cannot handle it and fail to work in all kinds of ~~interesting~~ frustrating ways.
I think you mean you. I don't and never have done that, and I suspect millions of windows developers have not either.
In fact, how dare you forget the Linux users when writing your comment?!
Just… why.