I think the reference to Childs as liberal in this bio was unnecessary at best and pejorative at the worst. The use of the negative conjunction "However," seems inappropriate and biased in a biography of this length.
Brevard S. Childs (1923–2007), Old Testament professor at Yale University from 1958 until he retired in 1999. Childs had a significant positive influence in biblical theology by insisting that interpreters should be Christians who view the text as Scripture and regard the final form of the canon as the norm for interpretation. However, he held to many liberal views about Scripture, denying that Moses wrote the Pentateuch and seeing elements of pagan mythology in the Bible.
And I don't think it is a stretch to say that Mosaic authorship is no longer the default belief of most Christians, even for most evangelicals. So to call him liberal for that belief is pretty odd on a post-it sized bio.
I would suggest deleting the last sentence in favor of adding something more objective, such as Childs' thoughts on the importance of Biblical memory in the New Testament.