Not sure that stat line is relevant.
We didn't use any of our backs as pass catchers in any real volume last year. Hopefully that increases this year, but the reality is when you have a pair of monster wideouts that can motion and shift to get into their routes all over the field, they are going to get the lions share of the targets, regardless.
If your point is that there are better options for designed passes to backs, I would agree. That doesn't mean he doesn't fit the offense. He is very good as a runner in zone blocking schemes. Not every back is.