The quality that Apple was known for under Steve Jobs?
People have been complaining about Apple's quality since this forum launched back in 2001.
Titanium PowerBooks that pitted from the natural oils on peoples hands. PowerBook hinges that snap from daily use. A 15" PowerBook release so fraught with quality control issues that
MacWorld dedicated an entire section of their review to talk about that. Screen distortion issues on the first "hi-res" PowerBooks. Capacitors blowing in iMacs. Worldwide warranty extensions on iBooks. Yellow screen issues on the first LED MacBook Pros and several iMac generations. How easily the first iPod Nano scratched on the back. The MobileMe launch fiasco. The first generation Intel notebook problems: high heat, buzzing from Pros, random shut-offs on the old MacBooks. All sorts of bitching about Mac OS releases, especially Leopard and Lion.
Those are just some examples of quality from Apple that didn't meet expectations, while Steve Jobs was at the helm. So I don't think he's exactly the poster child when it comes to "nailing it" (i.e. Apple always living up to expectations).
Can you name a X.0 software release (like iOS 9.0) that didn't generate some complaints when compared to a X.X.X release (like iOS 8.4.1)?
You've been on the forums here for coming up on three years, and you've never noticed that every single Apple update (esp. X.0 ones) have caused some people problems? As crappy as it is, it's a fact of life. I can't think of any manufacturer that has released a software update that hasn't caused a subset of people some problems. Can you?
A quick search of the forum here shows that many people had issues when iOS 6.0 was released. Are those videos of iOS 6.0, or one of the subsequent releases that helped refine the performance and squash the bugs?