I am concerned about this change in approach - because I think any 'one size fits all' approach to something as fundamental as reading, is going to leave some kids behind, and I don't think any child should have to be.
From my point of view, my eldest read fluently at 3, because he really wanted to, and I found that at that age phonics didn't make a lot of sense to him, and actually 'look and say' which is how I learnt, worked much better. Developmentally, at that age, children are looking to make connections and rules, so with 'look and say' they develop their own internal system of how language works and the sounds that letters make in particular contexts. At 6, he now has a reading age of over 10, but because he has an intuitive understanding of language rather than one learnt through phonetics it's likely that he'll not do particularly well on the phonics screening tests (quite frankly, when the teacher showed them to me, I don't think I would either!).
The difficulty with this system is that English isn't an entirely phonetic language, so focussing exclusively on phonetics and not using a variety of methods seems innately problematic. I also fear that it may leave behind those that do well with the current system. The research Nick Gibb quotes said focussing on phonetics was particularly helpful for those that were struggling, but what about those that weren't? Does it really solve the problem if it's just different children struggling?
As an aside, the research he quotes is from the US, which is actually a more phonetic language than UK English is, both in some of the spelling differences and the pronounciation. I remember once having to learn an American accent and being amazed at how many more letters you had to pronounce!
I understand the desire in any education system to simplify and use a 'one size fits all' approach to teaching, but actually different children learn different ways and surely the system should support teachers in finding the best way for each individual child to learn, rather than dictating that they all have to learn one way? Surely reading's too important not to give every kid the best chance they can at it, not just the kids that happen to suit the method of learning currently in government favour.