Nothing new. The Canes have a horrendous offensive history in bowl games. Even during the glory era Miami seldom scored the projected points.
I started mentioning this on Rivals more than 15 years ago. I detailed the specifics. I don't have that chart right now but the tendency has continued to greater extreme. The betting combination of Canes and over in bowl games has cashed only a handful of times. I had friends in Las Vegas who thrilled to kid me about that every season. In contrast the combination of the opponent and the under has a tremendous positive return.