Saying this outside of Warlock, there is nothing wrong with Torghast. The tower doesn’t scale to your gear, so the more geared you are, the easier it will be to do Torghast. The higher you go, the harder it is. It’s just like raiding, but limited to 1-5 people.
You also need to think and make decisions carefully. If you faceroll everything, of course you’re gonna get punished. Bare in mind there is no timer to complete it. If you really wanted to, you could take 4 hours to complete one layer.
You also need to choose your anima powers carefully, understand your class, and figure out which ones sim better to your spec. This is, after all, Mage Tower 2.0. Pick damage boosts by majority and the surviving powers only if you truly think it’s needed. Look around every corner for urns, Rares, and souls. Spend wisely on your broker. Use that expensive Core wisely.
I feel most of the backlash is from those who spend their time in LFR or Island Expeditions. Easy rewards ASAP with little effort or thought into it. Just wanting the award. Not earning or puting time into it. If Act-Blizz bends the knee to this and nerfs it to the ground, Torghast will be a complete joke. This expansion is meant to occupy us for 2-3 years, you know.