Well, for one the ilvl 24 destiny are the pre-scaling version, i believe...
I was more pointing out that spamming WW to keep both procs active makes sense when WW is a rage generator instead of a rage spender. WW costs 30 rage at 20.
Charge + bloodthirst is 18 rage, raging blow is 12, dual auto swings is... another 25? (its been a while). So you can get the first WW off, *maybe* get all 4 sader + destiny procs, but you wont also be hitting ignore pain or be anywhere close to a rampage. when your target blinks/disengages and gets the slow on you, now what good are your destinys? You might can auto swing on a pet to get enough rage for an IP now, but then you're hurting for rage for the next WW that you might/might not renew your procs with.
Fury is in a real tight spot because rage generation is a little slow and it doesnt have a lot of rage free burst like arms. Building around procs like destiny can lead to some hilarious burst if everything lines up for you. And by all means, if thats what makes it fun for you please do it! But it makes the build even more "live and die by the proc" than it already is.
Interestingly, I tested this a couple months ago and arms generates a lot of rage in sword/board autoswings, so weapon swapping and using shield block and IP while getting kited by a hunter makes a whole lot of sense and works pretty well. Fury, for some reason, generates less rage while doing this, making it even harder to stay up.
So its taking a less resilient, more proc dependent warrior build and making it *more* of both those things. This can be very funny and fun and I dig a high risk/high reward mindset. But I'm not convinced dual destiny has pulled itself out of being a meme build yet. Though, certainly better than it has been in the past.