Honestly, it’s about as direct as sending a fan letter to a celebrity. 
Is there an official place for us to report issues? Yes, of course. Does that mean those reports are acknowledged? Not necessarily, and usually, no. That doesn’t mean the issue isn’t read, but I guarantee not all of them are or at least not in any depth.
Cutting Apple a small amount of slack, there are also 34,000,000+ (yes, million) developers registered with Apple. Compare that to the number of developers/quality assurance people/etc. who work inside Apple. And of the 34+ million, we are a fraction of a percent of a fraction of a percent.