It's been a while since I studied on Mormon theology, but I'd suspect they would agree with and wouldn't flinch at using that statement. The differences come out when you press what it means in totality, but they are very keen to be labeled labeled "Christian" and use a lot of similar terminology in my experience. This is what most factions do and why it can be deceptive to distinguish. I thought the large BYU crowd in the east side cheered and clapped as well after the prayer, from my view point.
I actually thought they would be more offended by the Jerry Falwell clip, where he called them Mormons. I think in the modern day they are avoiding that term and want to be referred to as Christians or members of the LDS church, not Mormons. Likewise, modern Catholics don't like being called "Roman"... I'll just stick with calling them papists
.