The issue with aspect of the crow is that it needs to stack a lot of times before it gets useful, this means that anything other than running a ton of crows with lots of minion attack speed will make that node essentially a waste of space, and even if you DO have 4 crows with say 100% extra attack speed for 8 hits per second… the 30% proc chance means you will probably only get 1 or 2 procs per second.
This means the best possible scenario for that node is about +48 spell damage, except you would need to waste gear slots increasing max companions and minion attack speed and you would need to use this on a build that is focusing on spell damage, so even more inefficiency because you would pick beastmaster instead of shaman. A more realistic estimate is +12, ignoring when the crow does anything other than attack enemies.
But as you would set up storm crows with their healing nodes you would probably not have then attack enemies, and if you have then attack enemies, you do not want character spell damage, you want minion spell damage.
and then there is Arbolist, which causes the crows to constantly spam the buff on one singular totem, except because they have reduced duration, the totem will get about 4 buffs per crow before the buff expires(which ends up being more bonus damage per crow than the character would get, assuming 1 second cast time) the problem comes in that the crow cannot stop spamming the spell, as it targets the CLOSEST totem without a cooldown. This invalidates THE ENTIRE REST OF THE CROWS TREE, as it will not do anything else.
Also the node arbolist depends apon(wisdom of the storm) which lets the crow buff other minions on a cooldown is completely useless, due to how aspect of the crow works and the reduced duration.
If Aspect of the crow didn’t stack and instead had a bigger buff, it would be more useful for everything but those incredibly niche builds that want it to stack(you could have a node that lets it stack if you want to preserve this), also Arbolist should be changed to buff all totems on a cooldown rather than buff one over and over.