Why does the sounds of 'y' video not include the fourth short 'i' sound?

It is important not to overwhelm children who have dyslexia with too much information.

This video is aimed at young children and covers the sounds made by Y in shorter, easier words such as ‘try’, ‘yes’ and ‘daddy’

There is a more advanced rule for the sounds made by ‘y’ in the body of a word, such as ‘symmetry’ and  ‘hydrogen’ but this is introduced at a later level.