Yea.
However, the marketability of MMA heavily relies more on entertainment than other sports. And coasting in MMA effects the entertainment value of the product in MMA (and I would say by extension most other combat sports as well) far more than a sport like football. So because of that, there is a culturally different view on coasting in a contest.
Coasting in football is not only accepted, but most times encouraged because the goal of the contest is to just win by scoring more points. In MMA, the primary objective that most of the audience wants to see is for the fighter to go for the finish, and not to run away because he or she knows they're up.