I created JBTM-2987
I will do PR for it and for JBTM-2583 for quickstarts.
However for changing defaults in Spring Boot that would be a separate process?
As you say, to update in SpringBoot we need to update: spring-boot/NarayanaProperties.java at 8f4bf233b4895a4fade5aff41e0a309f90ba3193 · spring-projects/spring-boot · GitHub - Thanks again for the contribution!
+1 to update of the docs - that would be a JBEAP issue (Documentation component) I expect.