But if you have your tremor totems in a standard cast sequence macro you're only dropping 1 every global cooldown, correct? Whats the global cooldown again? 1s? 1.5s? Either way 1s is too long between tremor totems to avoid fears sometimes - 1s could be enough time for your guy(s) to get out of tremor's range before the next pulse, if you're unlucky, a little ways away from the totems, and the fear makes you run instead of walk (sometimes happens to me, not sure why).

Anyway, just a thought, I prefer the granular control of deciding exactly what to drop and when, and if I only have time to drop 1 set of totems I'd rather be able to KNOW i can have 5 tremors down then "oops I only have 1 tremor down and some other random totems I don't need right now".