There was some coverage:

http://9to5mac.com/2016/02/28/apple-conf...res-how-to-fix/

https://www.reddit.com/r/apple/comments/47tfos/warning_software_update_03151913_breaks_ethernet/

http://www.techinsider.io/apple-confirms...e-update-2016-2

http://www.ubergizmo.com/2016/02/apple-fixes-mac-ethernet-port/

But yes, a surprisingly small amount of outrage, compared to normal. I suspect that the vast majority of Macs are using wifi rather than Ethernet nowadays, so of the subset of Mac users who were using machines hit by this only a fraction of them would have noticed.