[1] Before 1945, almost everyone learned to read, by the age of 7.
It seems unlikely for reasons I outlined on the other thread. As there was no manpower for remedial support, I have to say it sounds unlikely. It would also depend on how you define 'can read'. Did the authors reference any resources that were used to teach children before 1945? For instance, decodable reading books for the children to practice on.
[3] After about 1945 the look-say method 'was introduced'; they have a list of 'guru' names and books, but don't know about the promotional methods.
I think look-say really started in the mid 1950s with the introduction of Janet and John books. In 1945 our country had no money to introduce anything new into its primary schools.
[4] Look-say in their view used just the SHAPE of words, i.e. the outline, to try to teach reading - ignoring differences in lower-case, capitals etc
'Shape' of words is deceptive - it is more to do with pattern. Of course, word shape looks completely different in lower case and upper case.
[5] There's another version in which the whole word was shown, but it was deliberately withheld that the letters had some meaning, and even that words are read left-to-right
If words are read as wholes then directionality doesn't actually matter. Whole words were normally introduced to get beginners started. Letter sounds tended to be introduced later. As children were taught to both read and write - they would have learned to write words from left to write. For a fairly realistic look at how reading was taught with resources still in the public domain, it might be useful to google the Ladybird Key Word reading scheme.
[6] As a result there was a vast increase in illiteracy. Large numbers of pupils spent years learning nothing of reading (and the parents seemed to not comment, or be bewildered). And a vast increase (or invention) of dyslexia, since of course the kids had no idea about reading.
Was there a vast increase in illiteracy? If there was, then the receiving junior schools would have been very unhappy and infant schools would have had to have reverted to what they were doing before. Some pupils may have learned nothing of reading but it was more to do with the lack of money to provide remedial support for those who, for whatever reason, fell behind.
^[7] This continued at least up to the time of their book, 2007.
Their book is interesting and convincing, but (for example) omits some names of Education Secretaries, omits actual evidence of what happened in classrooms, is somewhat anecdotal about McNee's success with dyslexics, and also makes some claims which seem hardly credible, such as teaching words purely by shape.^
McNee may well have had success with dyslexics but may have been able to do this by providing one to one or small group support for children who were behind. This kind of support would not have been available prior to 1945.