Is This Sony a7r IV Feature Signaling the End of APS-C Cameras?

We know that this could sound a little insane, but if you look at trends in how the photography world is playing out, we could be seeing the end of APS-C very soon. As it is, there isn't much solid reason to purchase an APS-C DSLR camera vs a mirrorless camera. From Sony's presentation, we were able to gather just what Sony is trying to tout at the APS-C level despite the Sony a7r IV being a full-frame mirrorless option. So to understand it a bit more, we talked to Sony'a Mark Weir about it.