It should never matter, unless you have something specific you need from one of the various proprietary JVM's. The free JVM's are usually vanilla pre-compiled OpenJDK.

Frankly, imho, you should be deploying within a container even for simple/basic apps these days - so you bring your own JVM and environment rather than use something the platform provides.

The folks paying for Oracle JDK are likely big corps that want to pass the support-buck when it's 3am and something went down...