It's possible a cease & desist prompted the removals, but it's also possible that all of this is a coincidence. If my information above is in error, I'd appreciate a correction. This is a lot to keep track of.
There's an interview with Ben in the latest AF. I haven't got it in front of me but IIRC he said something to the effect that Cloanto's lawyers sent them a C&D and also got their digital downloads via Avantgarde, taken down.
I just hope when this is all sorted out Amiga branded hardware that runs Amiga OS 3.x can be developed and marketed and that the classic OS will be back in development and not just patched up. If it doesn't happen then it will be a shame for the Amiga name but with AROS 68K and Apollo/Vampire hardware there will still be a future and the Vampire brand is growing strong in its own right. As for AmigaOne and OS4, well for those that like the platform I wish them an it well but it's not for me so I don't have strong feelings about it.
Merry Christmas, let there be peace and harmony in Amiga land in 2018.