Is extremely accurate "VTA" adjustment necessary?

Here's a very interesting article by Geoff Husband of TNT on the importance (or better relative unimportance) of overly accurate VTA adjustment.

Exposing the VTA myth?

A short quote form the article:

Quote - "VTA, or Vertical Tracking Angle is one of those topics that divides opinion...That 'VTA' matters is indisputable, but the purpose of this article is to examine the validity of the claims made for the relative importance of VTA...SRA/VTA matters of course, but in the real world not THAT much, rigidity, simplicity and lateral alignment are all more important"

What are your thought and comments on this issue?