stated the BBC was moving to HLS and HDS and had told manufacturers this - especially those affected. One presumes that as devices are not BBC certified and many do not uniquely identify themselves to the web servers this would have been a 'best efforts' exercise.
The same entry also states why MP3 was selected as a fallback. As Audio Factory replaces existing hardware (info from the same blog) one presumes the new hardware isn't setup to support AAC.
I agree that Naim's comments are at odds with this
This was posted in September - I imagine that the details sent to the manufacturers were just as clear and with more notice. Pure radios upgraded their kit in December to support HLS so I presume they had sufficient notice of the change and didn't complete their development in a few weeks late last year.
Cambridge audio have one FAQ on their website on this topic including the phrase 'On demand services are also gradually being removed' but the product pages still display an iPlayer logo as if everything is still good...
Yes, the homepage went through a phase of championing news - probably at the cost of its other output - after all it has a mission to inform, educate and entertain - the third item is just as important as the first.