Identification of reduced row echelon form and nuance in Gauss-Jordan elimination technique

Question

I'm studying Linear Algebra: Step By Step by Kuldeep Singh, and on page 23 he shows this as an example of a matrix in reduced row echelon form:

$$ \begin{pmatrix} 0 & 1 & 0 & 8 & 0 \\ 0 & 0 & 1 & 0 & 4 \\ 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 \\ \end{pmatrix} $$

My questions:

1. Why doesn't the "8" in the first row disqualify it from being called reduced ? Is it a typo?

2. If I wanted to reduce this by converting the "8" to "0", how would I accomplish that? The Gauss-Jordan elimination technique he showed involves multiplying another row so that it also contains an "8" in the same spot, then subtracting. But since the other rows all have zeros in that column, I'm not sure how I would apply this technique here.