I actually find it interesting Blizzard managed to cover most of the bases that make for wonderful RTS using completely different methods than they used for BW.
Reading the argument I think both BW and SC2 have their own method of "zoning". It's just that the method SC2 uses to achieve this means are different from BW, and we can't really claim one method is better than the other. It's a matter of personal preference. While one used to the original low ground mechanics and area spells might digress, at least Blizzard "did it right" by inventing completely new way of zoning instead of being original and copying BW.