No because anyone that actually works with Java knows the difference between various Java implementations.
Furthermore, it's a little bit of gatekeeping for those who may be entirely new to understand the difference between something like OpenJ9 vs AdoptOpenJdk vs Amazon Corretto.... you get the point.
It was quite clear since the beginning, plenty of Code ONE, Devoxx, NDC, JavaZone, Jax, InfoQ talks
Conferences that I expect any veteran to spend some of their learning budget, or at very least read some of the related articles on Java magazines.