"Stormcaller's Thunderstrike melee range reduced to be consistent with other Warlock Subclasses
Amplitude will continue to grant small range boost to new base range"
The guy probably has Amplitude on in the skill tree.
The real problem I have with this is the same problem I had when they took away sticking people with Tripmines. That shit was fun as fuck. I NEVER once felt that getting stuck with a Tripmine or being killed with a Thunderstrike was OP broken. It was part of the subclass. It made them fun. Then they nerf the fun because they don't know how to balance anything. Bungie is so bad at this in Destiny. We all admit Sunsinger was OP, but then they nerfed it into the ground and NOBODY played it in Trials. I know balancing stuff isn't easy, but just nerfing stuff that makes a subclass unique is not the way to do it. I absolutely HATE how samey the classes and subclasses feel. How many PvP games exist with characters that are so vastly different from others, but yet their is enough balance to make it interesting? Plenty. But apparently Bungie's way of balance is make everything close enough to the other thing.
The final point is, Stormcallers has a really fun melee that was unique. Killing a guy that was far away from you with a melee was always amazing and if you died to that, you had to have taken half damage already. It was not OP broken.