See, I never insinuated any such thing. On at least two occasions I said the opposite.
My point is that *despite* the fact that I'm certain you can do it, AllisterH called 3E DMs (such as yourself) "poor suckers" and praised 4E for having features that assume people can't handle it.
[Analogy Game]
Your goal is to build a house. You really want that house.
So you do all the usual stuff, digging out the foundation, schlepping stones around, making cement, installing the windows.
It's awesome. At the end, you have a house and you can live there the next 53 years and 6 months when you die from an heart-attack you get while laughing about a rerun of Monty Python.
Your grand-son wants to build a house. He really wants that house.
So he contacts an agent of a prefab company. He sits on the computer and designs his house from ready-made walls, selects the colors and windows.
It's awesome. At the end, he has a house and he lifes there the next 53 years and 6 months when he dies from heart-attack he gets while watching a rerun of Monty Python.
If you really liked the stuff of digging out the foundation, schlepping the stones around, making cement or whatever else, yeah, you really would prefer the first method. But if you just wanted a house to live in there for the next decades, the second method is brilliant.
[/Analogy Game]
The distinction is not really about "smartness" or "experience", but what you are actually interested in. Do you really like the entire mechanical process of "world-building", "campaign-planning" and "monster-building" like in 3E? If you are, 4E will not satisfy you. If what you want are the results, the campaign the players run in, the encounters the players deal with and so on, 4E will get you to that result a lot easier.
A newbie will most likely have the impression that the game is what happens at the table, not what he does at home to prepare for it. A system that provides quick mechanical ways to get you material for the game at the table is preferable. It makes getting into the game and thus understanding how it plays easier.