No offense, but you should probably read at least the sections you're commenting on. Your reasoning is pretty correct but your conclusion is opposite the truth. The full quote:

"Generally, logic blocks are automagically laid out with the use of advanced computer software. However, it looks like the ARM core blocks were laid out manually—as in, by hand. A manual layout will usually result in faster processing speeds, but it is much more expensive and time consuming. The manual layout of the ARM processors lends much credence to the rumor that Apple designed a custom processor of the same caliber as the all-new Cortex-A15, and it just might be the only manual layout in a chip to hit the market in several years." (emphasis mine)