That’s what I figured.
Another issue with these types of macros is you’ll waste a GG proc on an eye, loosing valuable dps on the boss.
One word: Complacency.
With mouse over. Youre actively interacting/searching for your target. By doing so youre also aware of their position and can orient yourself accordingly.
With macros you aren’t. It takes the thought out of it. You become complacent and that’s when accidents can happen.