The reason RSS is not dead is because it is relatively free. The people who don't want it on their website remove the RSS button from their list of share-buttons. They have no clue that their website still supports it.
Example: Vice wrote an article titled "The rise and demise of RSS" (you can google it). Now go to their homepage, look at the page source, and there you go:
Example: Vice wrote an article titled "The rise and demise of RSS" (you can google it). Now go to their homepage, look at the page source, and there you go: