Gotcha. Well if you saw it saying 0% today, I think you are.
But no, all dancers healed the same amount. It was very bugged and could stack to insane heights, some people saw a passive regen rate of over 800. The highest I saw was 75 health per second.
This bug was fixed in yesterday’s TestLive build, which is probably why you now see less healing.
Here’s my bug report on the matter, just in case you’re interested.
Edit::
Also, that regen percentage was never correct. It was a flat +0.25 healing per second at a stack of 10 Entertained, regardless of whether you had Fierce Vitality or not.