The questions of whether Maryland has a good defense and whether RU can beat the Terps are two different things. Frese is not a very good defensive coach and never has been - her teams win on offense and individual effort on the defensive end, not any kind of really strong defensive concept or execution. (She's better than Hatchell, but that's faint praise.)
I would agree with you that the odds of RU beating Maryland are pretty slim this year, but it's in large part because of RU's defense, not Maryland's.