I mean, this isn't surprising, but it's good to see Sony clarify their backwards compatibility stance as well as Xbox clarify that they don't mean full compatibility at launch.
I feel like Xbox will have more games at launch as well as get everything within the first year (using the general public to report issues and fix as they come up) and PlayStation will likely do the same but on a slower and more piecemeal basis. I also dislike their statement about developers needing to fix the issues, that just screams them not caring