Lol, firstly it's the board manufacturers who decide what ports to put on the back not AMD.As i was first to report on this AMD need to address the issue of ensuring hdmi 2 ports are used on boards, specifically itx boards. I'm seeing hdmi 1 on boards so far and this is unacceptable when future apu's are going to be used.
Secondly people who want 4K @ 60Hz for none gaming are a very niche market and so it's understandable why they're not being catered for. Anyone who wants 4K @ 60Hz for gaming use will be getting a dedicated GPU instead of an APU anyway to push the frames.
I am not saying it's not something we shouldn't aim for in future (well, we should probably aim for Displayport on everything and let HDMI die naturally TBH), but I doubt any AM4 APU is going to be getting getting screen tear when limited to 4K @ 24Hz...