On the contrary, they've open sourced the entire JDK for the first time ever, and are now offering the same JDK either completely free or with paid support, rather than the mixed free/commercial JDK as before. (I work at Oracle on OpenJDK, but speak only for myself)
Now if OpenJDK is kept at parity with the OracleJDK that could work.
Oracle will now only support current LTS versions of the Oracle JDK (as opposed to the OpenJDK), for something like 2 years. Basically requiring people to migrate to LTS releases relatively quickly.
If you can’t (larger orgs and others with requirements that delay those moves), then you’ll need to pay Oracle for a license.
Java (Oracle/Sun JDK) has never really been free, specifically, while I never worked with it, embedded JDK has always required a purchased license for distribution. The OpenJDK, on the other hand is a free OSS licensed distribution of Java.
So for them, it's moving from a freely available JDK supported for many years, to a JDK that's changing every 6 months.
And the dust is far from settling on which alternative OpenJDK build is stable, reliable and free, long term.
I know that companies should pay for it, but things don't really work like that, see the OpenSSL fiasco.
I really hate to say this, but I wish IBM had bought Sun instead of Oracle. Even better I really wish Sun had managed to pivot and stay an independent company.