Paying user for bug reports would just incentivize very prolific spammers (you know who) to fuzz your entire OS and automate sending thousands of reports a day.
Apple traditionally had a culture of a lot of high quality bug reports, but once those become too fast for anyone to keep in their head, there's no point to them because they'll just get lost. You might as well just go look for bugs if you run out of some. You'll find them.
> "When you’re a carpenter making a beautiful chest of drawers, you’re not going to use a piece of plywood on the back, even though it faces the wall and nobody will ever see it. You’ll know it’s there, so you’re going to use a beautiful piece of wood on the back. For you to sleep well at night, the aesthetic, the quality, has to be carried all the way through."
These things matter because that's what the OS has been championing for years. It's not Windows where it's almost expected to see a random Windows 95 dialog when you're trying to do something.
Apple slipping here means they've lost sight of their DNA and that's rot-from-within bad. If you are careful of the small details, that means they care enough that the larger details will iron themselves out.
Yes, like you said, there's bigger things that matter, but Apple's older software quality strived to achieve both, not just one or the other