My opinion is purely based on the DPS metrics of the weapon compared to other swords as shown here: https://docs.google.com/spreadsheets/d/12vF7ckMzN4hex-Tse4HPiVs_d9huFOKlvUoq5V41nxU/edit#gid=381806300 As you can see, the sword barely "outclasses" the other swords. A difference in DPS of three or four thousand is practically meaningless. Bungie stated in the TWAB that they wanted to nerf it to bring it in line so it's only marginally better than other swords but isn't it in that state, to begin with? We can exclude the calculation of whirlwind blade and other damage modifiers because most of the other sword frames can also roll with these perks, so even if it is calculated in these other swords still do only slightly less damage.