Thus their claim to support 24-bit colour is fine but they should be clearer about what they mean by that.
It is misleading: two or three people here already got wrong because of that. Unless you're really into technical stuff, you'll interpret it as supporting (adding) 24bit in AGA. Weather it was done on purpose or not is left to the appreciation of everyone (I wouldn't be surprised it was).
Adding something like "full-AGA support, including HAM8 modes (HighGFX HAM8 supported)" would be ok as I see it.