If only the process of our life wasn't time-bound! There's so much to read that we can't help but look for signals, especially ones in an introduction which is designed explicitly by the author to get people to continue reading the book and which takes as its subject the book as a whole.
It's not a matter of merely "not liking a sentence", it's that the author makes false or misleading claims to bolster his own standing (like the one quoted), fails to display a mastery of the relevant material, and gives enough clues in style and substance about the kind of book this is for me to know, from past experience, that it won't be my personal cup of tea.
What really matters:
I won't be reading this book given what I've seen so far, but I don't intend this as a general criticism.
Writing like this is essentially therapy and different people respond to different treatments. It may well be that for many science-y/CS folk this is just what the doctor ordered! And I have no interest in undermining that! And even if it is, to my sensibility, messy and lacking in the forceful individual style truly soul nourishing books require, it can still be valuable. Lord knows there are many books which I can rationally pick apart every which way or which just mouth one platitude after another, yet which truly moved me and made me a better person and of which I wouldn't change a thing.