You're right, it had escaped my attention. I have quoted them directly in the blog now. Thanks!

I agree completely - once you're on the wrong side of the transition, it is hard to go back

More importantly, it's not worth going back. At a certain point, it becomes actually less work to start over than to try to cut that Gordian Knot.

The problem then is when business logic is encapsulated in the mud.

That's very interesting adrianN, thanks!

Like Dexen says, the surprise is in the non-linearity. The sudden transition from a sparsely connected to a widely connected system comes somewhat unexpected (at least to me :-) ).