13 reasons often given for not teaching phonics as well or thoroughly as is needed:
http://ssphonix.blogspot.co.uk/2014/06/thirteen-horrors-of-phonics-say-some.html
This post is on the ssphonix blog by Gordon Askew. Now (largely) retired. Until April 2014 Phonics Adviser to DfE. Former primary headteacher, consultant, lecturer, inspector and phonics trainer.