Here’s the unironic answer:
- Warrior is broken right now due to Execute. 6m crit is not a meme. Buffing Whirlwind and Rend adds nothing, this is still an overall nerf.
- Whirlwind damage was VERY poor for Arms, it is an ability replaced when you take Cleave. This is for PvE, buffing the non-talented version of the ability, which all the meta specs never use.
- Rend is a dead move in PvP, although it can be auto applied through some other moves. There has been negative modifiers on Rend in PvP for ages (edit: maybe not, rather there’s positives on everything else?). That 15% buff is only going to be like 90k damage (not actually doing the math yet) over a fight. It might help rebalance some of the talents away from the Execute talents too at the moment. Probably not though.
I don’t see this changing the Execute PvP reliance at the moment but it is still a nerf.