It's the bottom 20%-30% who need to be absolutely secure in their decoding abilities before moving on. It's these children who end up, in most cases, with unnecessary labels, or end up in Youth Offending Centres, or in prison, unable to take up work that requires reading accuracy.
Is it really too much to spend 3-4 minutes checking each child? It's all very well saying that teachers assess their pupils all the time. Why then do we come across 7 year olds unable to decode m a t, reverting to guessing, unable to work out the code for m a t when the class is working on split digraph m a t e. There are thousands of non-words that can be used - that's why you can't 'teach to the test'. Last week, I wrote out 7 non-words for a child - 5 were o.k. but words zup, and blus weren't. Why is a child near 7 unable to recognise /u/ 'u'? This child will bomb between 7-8 when reading becomes more extensive (the US grade 3 glitch),. Why deny him the foundational skills he needs?
Many, many teacher training courses would agree with mathanxiety - after all they aren't responsible for the left-behinds. Of course 'our children can do it ...' without alphabetic code knowledge and practice. Is this true of teachers of the periodic code, genetic code, musical notation? Do they emphasise complexity, before simplicity?
No response to criticisms of alternative schools - ie Steiner- mathanxiety. Or to the Inner London progressive experiment in the 1970s-1980s - which produced massive numbers of children whose lives have been blighted by semi-literacy.
No urgency expressed for these children - just the self-satisfied 'my children didn't do phonics' repeated endlessly. Yes, we understand that at least 1/3 of children manage to internalize the 'code' without specific instruction, and that includes children from very challenging, book free homes. You have absolutely no answer, mathanxiety, for the majority of children who need specific, focused, logical instruction.
Many of us did OG courses similar to the programme that you use for your adult students. When we found that SP was far more logical and focused, we changed. I know of no-one who has taught SP who has then switched to an Orton-Gillingham programme. For a private tutor,this can result in a considerable loss of income - it does not take years to teach someone synthetic phonics - unlike Orton-Gillingham - which can take up to 10 years (nice little earner).