Honestly I see no reason why you'd prefer a click macro over a castsequence for a soixante-neuf rotation i;e. to split up your main castsequence into multiple ones. Obviously activating the trinkets and probably targets can be a benefit, but the actual rotation?

On a sidenote: i prefer to have consecration at the end of the rotation so i can open with it (instead of the popular avanger's shield which i save for whenever i either need to burst threat or when adds show up). For remote pulling i use taunt. My tps with opening taun/consecration is way higher than with avengers shield, definitely when there is more than 1 mob.

Even in icc raids is see many pallies pulling with avenger shield and struggling to keep their threat above the dps, whereas when they open with consecration i never really have to stop dps'ing or switch targets.