This happens to me from time to time as well, not in this particular case. I think it's related to the fact that my mind has created a certain context, and I don't read with full attention. I will regularly skip over words unintentionally and "fill in the blanks".

Sometimes I think this is an artifact of occasionally looking at groups of words as a single term. If I read each word deliberately, I don't encounter this problem.

From my understanding of dyslexia, this is not it.