This is great news: Instagram posts are now going to show up on Twitter feeds as real pictures again. As it is/was, sharability from Instagram to Twitter was limited to a link reference. Post a picture of your pie, and a boring old hyperlink to that picture would show up in Twitter -- assuming you opted to share at all.
But, the Verge account of why the one-time behavior was ever changed in the first place, and the somewhat random meandering way it came back, exemplifies the disturbing capriciousness resulting from all these private enterprises bonking no-brainer easy solutions back and forth like gods, while we the digital consumers exist as mere pawns.
I for sure as a 55-year-old guy with zero social capital, or "synergy" if you will, should not be caring about this as much as I do, but I believe in the digital revolution and really hate when we have examples of getting less usability, or a gain, by power broker whims.