Having Trouble Understanding the Skyfish Attacks

I read somewhere that they only attack you if you're weak. I just got knocked out of the arena by one when I was at 1800+ and my opponent was sub 700.

Also I feel like they should leave you alone if you are active. Like if I'm standing around scanning or hiding somewhere they should seek you out. But they gotta stop breaking up combos and turning the tides of 1v1's.

Just my thoughts on that one.