I did find this paper where somebody used the term “mindless reading”
Smallwood, J. (2011). Mind‐wandering while reading: attentional decoupling, mindless reading and the cascade model of inattention. Language and Linguistics Compass, 5(2), 63–77. https://doi.org/10.1111/j.1749-818x.2010.00263.x
Seems that is the term used for it such as this talk in 2006
Abstract: “Mindless reading” occurs when, during reading, our eyes continue to move across the printed page in spite of the fact that we are busy thinking about things that are often completely unrelated to the text.
I did find this paper where somebody used the term “mindless reading”
Seems that is the term used for it such as this talk in 2006
https://ies.ed.gov/director/conferences/06ies_conference/posters/readingtq_reichle.asp