So ultimately what you're positing by using the discussion about equality is that there is clearly an inequity in how these individuals were treated and such. If you're going to use this term of art, as you say, then it could easily fall under the same sort of construct, but ultimately, it's unnecessary to go forward with expungement. If it's perceived in a particular way, if the social acceptance does exist for this activity now, which is now legal, then there's no reason why it couldn't just simply be expunged.
On May 1st, 2019. See this statement in context.