Java is deeply engrained in much of enterprise software, which is slow and difficult to change. The licensing change was not given with nearly enough heads up for companies to properly assess their options and migrate to OpenJDK if they choose. From a user perspective, where it’s known that switching JDKs and updating major versions is often not a straightforward task, it sure does seem like this was carefully planned to make it too difficult to move off the JDK that just got a lot more expensive to use.
My company is dropping Oracle JDK entirely and moving to Open JDK, and over time transitioning off of java wherever possible directly due of this change. We are not a small company. It took several months just to figure out the scope of how widely the JDK was in use, we had to cut Oracle a hell of a cheque to avoid licensing issues, and we aren’t doing it again. We have a dedicated team assembled to move off of Oracle JDK now.
The general consensus of the Java leaders in our company is that this is a last ditch effort money grab by Oracle to leech money from Java, which was feared from the day that Sun was acquired.