There's plenty of space for all OSs to fit in this ecosystem. I thought we were over the 'linux rulz, windows/mac sucks' debate. Guess not.
If Tim Cook had absolutely no idea what the competition were doing, you'd start to wonder if that were negligent. But if he showed up for his keynote wearing an Android Wear watch, you'd start to wonder what was wrong with the dogfood.
This is the conflicting signals they're complaining about. If you proclaim that this is "the year of the linux desktop", and do so from an iPad, I think it's fair for me to question why you thought an iPad was the best tool for the job.
(aside: Please let "the year of the linux desktop" die. It's a running joke that's nearly 20 years old now.)
Fwiw I've had care free support for both my mouse and speakers in both Debian 8 (Jessie) and Debian 9 (Stretch), I think the worst thing has been when I'm over 20ft from the speakers and the audio sink gets a bit delayed & choppy. Haven't had to open a terminal for anything bluetooth related tho.