Thank you for the article. Graham Finch plays a high level. The article is about best practices, and has good information for all, including new beginners. That said, what works well for one person may not work for another.
This is especially true for what works for the top 1% or 5% (a decent number of regulars on the forum are in the top group for their experience level) and the average player. The quote in the original post is one example. For the average person one read only of the sheets is going to result in total confusion. Perhaps one in a million pianists have the memory and sight reading aptitude to use a one read through method to learn a complicated piece.
That said, there are a number of excellent tips in the blog entry that have been repeated on the forum over and over, such as:
* deliberate and consistent fingering
* no mistakes (practice slow and deliberate enough that no wrong notes get played)
* distinguishing between practice and playing
Some other parts seem to be more controversial such as learning hands separate.
Few things in music or learning are written in stone, again a person needs to find a method that works well for them.
I also found Mr. Finch on Youtube, featured by Pianist magazine. For the advanced beginners and above, they might find those videos to be of value.