Yeah at early percents Dark Dive is "safe" in that you won't get hit out of it. However, it's still slow, does crap damage, and puts Ganon in fallspecial if you miss.
It always gives Ganon the landing lag, though.
That's why it sucks.
You literally *CANNOT* use this, ever, as an attack. The
kuroryuken at the end is actually more useful.
I tried using it for the electric damage in a tournament match against Ice Climbers. I grabbed, shocked Nana away, then fell for the ledge.
That particular player was using ICs
just to beat my Ganon (because he knew CGs and enough basics to not get brutally mindgamed by any schmuck like me), and so he couldn't do perfect edgeguarding,
but anyone who knows their ICs *does* know their edgeguarding, and Ganon will not get up from there. On the ledge after that, you have at least 20 frames RCO to deal with after you Gerudo the ledge, and the IC will just grab you during that. You have no way of clearing them out for your landing, and they can even pester you with Ice Shots - in scattered timing - all day.
BUT sure, yeah,
if your opponent decides to leap off the stage at 5% for you, yes, you can Murder Hug him for 11% damage and a probable gimp.