Mo,
Or did Harbaugh?

Team was "flat" and conservative. Kaep did not run wild.
No, the quarterback makes the call on whether to run wide or not (Samurai). If the DE runs up the field, he hands off; if the DE crashes, he goes wide. Their DEs ran up the field to take that lane away, and Kap handed off to Frank for two TD runs through huge holes where the DE would have been. The play was not any more conservative than in the Packers game. It's just that the Packers played man coverage and the LB/DEs crashed on the back.