Maizie does at least admit that Some require a great deal of overlearning.
She makes learning to spell English sound quite easy:
Children are first taught 1 way each of the sounds is represented by a letter or letters. Once they have learned this they are taught the common alternative ways they are represented.e.g the sound /ae/ can be spelled 'ay' or 'ai'. There are about 160 common ways to spell the sounds. They practice reading and spelling words containing the sound spellings they are learning.
The most common way of spelling /ae/ is actually a-e (late, date, same), but because it's a bit more complex, it gets left till later, which is fair enough.
But knowing the different ways a sound can be spelt (late, great, straight, eight, veil) does not enable children to decide which is right in a particular word. - That has to be learned word by word for at least 4,000 common words with one or more irregular spellings. Children learn them in little groups, but to learn them all takes at least 10 years.
But that aside,
Maizie fails to mention a most crucial fact about English spelling when it comes to learning to read, and which is the main reason why many children need lots of overlearning:
Apart from having different spellings for identical sounds,
69 English letters and letter strings spell more than one sound:
an - any, ever - even, on - only, woman - women, sound - soup ....
The phonics experts can correct me on this,
but the way that phonics deals with those is to teach the common alternative sounds as well, after teaching the main one first:
e.g. ou can be as in 'out, group, double' and when children come across a less familiar word with ou like 'young', 'youth' or 'your', they should try to remember the different sounds they have been taught and see which one works in the word.
Phonics experts, who regularly post on here, like Maizie, Mrz and Feenier, constantly accuse me of not understanding how phonics is taught, but that is what i have learnt from their explanations on here. So if i got it wrong, i hope they will explain it better.
Many other teachers would argue that when it comes to teaching words in which some letters have irregular sounds, it is no longer a case of using phonics, but teaching to read those words as wholes - that phonics only works up to a point, for teaching the main sounds of letters and letter strings.
What is certain is that there continue to be lots of disagreements about how best to teach children to read English, and they are caused entirely by the spellings (graphemes) which have more than one sound. They are what makes learning to read English much harder than any other alphabetically written language.