Combo Action Button

[Sigma-Astra]

I can think of one really good reason. It frees up real estate on my bars. Maybe you don't think there's an issue of available real estate but not everyone agrees with you. Consolidating Fire IV and Blizzard IV into one button does nothing to ease BLM's rotation outside of reduce the required finger gymnastics slightly.

What real estate are we reducing it for though? What other skill or ability are you going to put into that empty space? You're not using several abilities already. Instead of consolidating abilities that have worked fine on their own, we should be focusing on lackluster abilities that do absolutely nothing yet they're there like Freeze.

As for finger gymnastics, your finger isn't really jumping around too much if you've been smart and placed Fire IV and Blizzard IV on the first hotbar and practically almost next to each other. If you put Blizzard IV on a second hotbar, I'd have to wonder if you enjoy making your life difficult for no real purpose.