My understanding (based on visiting hawaii as a tourist and not much else) is that no, there's not a US-legally recognized sovereignty, but there is a step back from:

* "They voluntarily joined the US" language

* the repression of culture - in particular but not limited to language, which was apparently ruthlessly quashed for a long while and is enjoying a lot more respect today, relatively speaking.

In a courtroom I doubt this would count for much, but in a war of PR releases it can be significant, and most of what I found about this case was press releases.