It's perfectly do-able on a hardtail, if you have to walk a couple of bits then so be it, it's short enough that you can do another lap and get it next time.
had a couple of offs, one right near the end where i misjudged a rock and bent an axle, but was otherwise ok, the other was on the rocky staircase thing when i ended up hugging a tree rather going over the bars at the top of a drop.
it's always fun to see how far you can nose wheely down the slab (seems to get shorter and shorter these days), and it was most amusing when a mate decided to launch the slab, needles to say he didn't make the turn at the bottom.