you are confused,
the article you are quoting is about the UPDATES to JDK 8, not about JDK itself. If you as an enterprise requires an update to JDK8 after the "warranty" is over, Oracle will be willing to make you that update for a small price, we are talking about thousands of dollars of course.
JDK 9 will have support as we know it "free" for some time too,
AND! if you simply hate the idea of having something to do with ORACLE you can use OpenJDK.
OpenJDK is slightly different from ORACLE JDK but for us B4J developers is almost the same. JavaFX will be fully opensourced and that means (i think) a good thing.