These people that found it funny are the ones that don't see the future, these types of people would if they could be using CRTs, SVGA or Scart and Analog Audio Out, well they still have Analog Audio Out but some day that too will go as tech moves on and what these people don't get about digital audio out is that the headphones or speakers will have the job of the DAC, that is the poor DAC that is in every laptop, tablet phone for supporting this out of date audio is one of the main issue in poor audio, when this is taken out then audio quality comes down to the headphones/speackers you plug into them.
The adaptor will just be a DAC for backward compatibility with old retro headphones and speakers.
This issue about Apple removing things has always gone on as Apple moves forward when others watch then copy, take the floppy disc drive, Apple supported SONY's floppy format from day one and when time was right stopped, optical drives also gone...
USB, replaced the old serial and parallel port, did anyone complain about that yes, now no USB way way better these people just can't help complain for what is good for them.