I also believe that turn based system was a hardware limitation of its time, but it has its quirks compare to real time systems, they are more of a test of your strategic planning, every character and ability bring something unique to the table and you have to figure out the most optimal combinations, stronger enemies are generally harder in turned based games because you cannot dodge them forever and have to take all their hits, which only makes planning and the use of correct strategies more important.
another thing is the uniqueness between each turned based games, because most turn based games have their own unique mechanics (summoning, spell fusions, special attacks etc etc), you'll have to learn them each time afresh, while as games with real time systems share many fundamental similarities, such as blocking and dodging, many of the skills in real time games can be carried over to other games and make the experience less challenging.
I stopped playing Kingdom of Amalur after just a few hours because the game was piss easy even on the hardest difficulty, the first 3 bosses went down without landing a single hit on me because my dodging reflex was already finely honed by GoW 3 chaos mode and Dark Souls.
at end of the day no one is better than the other, there are pros and cons for both and it's all depends on what works for you, it's kinda like chess and paintball.
