As A Warrior player who played durning older wow content “Slam” has always been very interesting to me You could play either around using your “Heroic Strike” or “Slam” as the Rage Spender obviously one of the options was considered better. but that still didnt take from the game. “Heroic Strike” being neat since it was off cooldown, and “Slam” with its cast timers reseting auto strikes”.
So I digress this post Is more about the Fun and entertaining side of the game, rather then pure optimization on whats the best way to play.
Slam right now just feels like a button you press to waste your rage, again thats just the core for the class. but “Slam prior had always felt more impactful to cast due to the cast timer it had”. making it a fun ability to use, It was fun in PvP” since it was rewarding to hit with it, and gave room for more interactions. midfight so Please Blizzard Bring my Old love back! the casting time!