This is almost certainly wrong and even logically absurd. I am sure there are more optimal ways to learn to read but any kind with a fair IQ who aren't dyslexic can learn to read.
My son isn't a genius, but he have been practicing reading since he was 5 and today at 8 he reads Harry Potter.
The trick (as with almost any other field)? Practice, practice, practice. That's it. There is no magic sauce there.
One thing that we found that actually increased his lust for reading (he definitely would rather play soccer, Minecraft or Rayman) is to give him a Kindle which has a kids app with achievements and daily reading goals.
It's sad that so few kids read at their grade level but it's not because of sub-optimal teaching methods that much is for sure.