My problem with CC is multifold:In most of my games, I tend to use CC pretty heavily early game. I tend to create a mining turtle which I use for several tasks such as mining, building houses etc. However, all of my code I've written myself, but of course, that was a one off cost everytime I build a turtle now, I just pull down my code and I'm away. So is it still over powered for me? Genuine question, I'm not trolling, I do agree with your point though, someone who doesn't have a clue with coding or lua can very easily use my code to save them the time.
First, it is insanely cheap for what it does. Then again, you could make the dang things out of Planks of Sengir (requiring eight nether stars around a dragon egg) and it would STILL be too cheap for what it does, but for the cost of a single piece of redstone, a bit of iron, and some smoothstone, you have a literal 'do anything you want and get away with it' block.
Second, it can do literally anything, often times better than dedicated machines which are supposed to do that task. As a simple example, a turtle quarry is in every way superior to a BC Quarry, but that's just the tip of the iceberg. There is literally no need for any other mod tools. CC and done.
Third, the only 'balancing factor' touted by the mod author at MineCon last year (or was it year before last?) was the skill required to code. I would like to submit that a) LUA is like 'baby's first programming language'. As in 'my nine year old is able to code LUA'. Literally. In fact, he ended up debugging some code I wrote that I couldn't get to work. Smart kid, that. And even if you aren't really all that smart, the only piece of code you will ever really need is PASTEBIN(URL).
Any single of these factors can cause it to be powerful. The combination of all three synergistic extremely powerful points magnifies each other to the point where CC is just 'do anything I want and get away with it'.