The push for more literacy teaching began in the 80s, and especially after the introduction of the Literacy Hour in 1998. So all schools teach it much more now, to avoid the displeasure of Ofsted, than they used to 3 decades ago.
But if u read any of the so-called phonics 'research' like the Clackmananshire study carefully, u find that what the more successful classes did differently was simply give more help to struggling pupils.
My ds was one of the 20% thoroughly confused and demoralised by mixed methods teaching. So why were u as a phonics expert not able to help him.
My son was dyslexic, but i had no trouble seeing that all the words which were causing him reading or spelling problems had tricky bits in them. I was therefore able to help him cope by helping him to find ways of dealing with those. My main strategy was to draw his attention to the regular and tricky letters.
I suppose what SP does is not so different, because it makes children aware that many spellings have several sounds, especially the vowel ones, as single letters:
apple, apron, any; even, ever; finger, find; on, only, once; us, use; type, typical;
or in combinations:
paid, said; ear, early; our, your; good, food, flood; friend, fiend...
I am sure u know much better than i do how best to help children cope with those irregularities, but it is surely blindingly obvious that those inconsistencies are the main reason why so many children don't find learning to read easy?
Teachers can come up with different ways of dealing with them, but they can't make them go away.