T9 is easy in the same ways T5 was and even Titan HM back when.

When you step into that fight it will blow you away. I never wanted in that place ever again after my personal fails that night.

But I went back... I STUDIED so that I could understand what I experienced... and I did A LOT better. But then there was problems with golems. Again studied and had plenty more exp in phase 1.

Process repeated itself all the way to hot/cold and divebombs. And then viola, we dropped her.

There was a lot of personnel changes, mostly due to people not having tenacity (wanted it done without doing the work)... and instead of throwing our hands up in disgust and shattering the static, we replaced. And replaced. And replaced. And our static in final coil is much better now for it.

Moral is: it takes effort to do it. Nerfing it won't make it easy clear. It is not designed that way. You'll need to put forth genuine effort.