That's the fundamental flaw with the game as compared to IE games. Nothing more. If you think IE games have deep tactical combat, you're...you're just dumb. They don't. They had easily breakable combat based on shit 2E D&D rules. And if you find PoE combat boring in comparison and consider that the flaw in the game...I don't know how to help you.
This is the thing about combat difficulty, especially in the IE games (or even the games related to IE games, like Dragon Age). All combat systems are just that: systems. They require you to learn how they work in order to be proficient in them. In fact, when we talk about "learning" how to play a new IE game, we are really talking about how combat works, since combat is arguably the most complex system you have to learn for any IE game, certainly more complex than conversation or crafting or navigating the main screen. This means that for most people, most of the time -- and yes, I include most Codexers in this generalization -- combat is going to get easier the more you do it. I guarantee you that the first time you play through DA:O, most people will do worse in combat overall than they will on their second playthrough, or their third, or so one. I found DA:O's combat a bit difficult on the normal setting, but then of course
I learned the system. On my third playthrough I completed the game on Nightmare, and did better than I had done on normal, by every measure: I died less often, reloaded less often, etc.
So when Sensuki wrote his long effort-post wherein he claimed I must not be very good at the game -- the game that has been officially out for 2 months, the game that I have played through one time -- my first thought was, okay, maybe I'm not very good at the game yet . . . so what? My second thought was that he was being sort of a dummy since he had been playing the beta for, what, six months at that point? Of course he is going to be better at it, and understand the complexities better,
because he has played it for longer. And now that I'm on my second playthrough with the Monk, on a harder difficulty level, I'm already doing better than I did the first time through.
All this griping about difficulty seems like a giant dick-waving contest. I'm sure some dudes who have the time to do nothing but play vidya can burn through POTD because they have all day keep at it; on the other hand, I'm almost sure that some people are lying (it is the internet, after all) about how easy they found it, or that they even played it on a harder difficulty at all. But the main point here is that difficulty in these games is entirely dependent on your familiarity with the system, and your ability to learn. It is not like there is an algorithm running in the background to keep the difficulty dynamic. It's all simply a matter of time. How much time are you willing to invest to get good?