It makes sense to include simple morphology lessons as early as kindergarten, increasing the lessons as vocabulary and spelling become more complex. Gradually the proportion of word reading instruction should shift from phonology to morphology.
I used to think that it didn’t matter how I learned to read, the fact that I’d become literate was the most important thing. But I came to realize that the way I was taught (or rather, not taught) to read words was affecting me even as an adult.