@Nearly-Right
I don't care which way anyone looks at it, from a Classic Amiga point of view the silence about the lack of Classic Amiga developed hardware support has been disgraceful, and we should have been told in plenty of time, to prepare us for the situation.
Obviously you haven't been reading forums, Rogue has stated for years it would be quite impossible to support every classic configuration, mostly because of the crude or hacky methods implemented by some manufactures, mediator being a prime example.
If you don't have compatible hardware then it's unfortunate, but don't turn around and say you should have been warned earlier, when it has been repeated many times on the "official" OS4 forums.