I watched this speech in Arabic, admittedly not fully focused and don't remember him saying anything of the sort. I'm currently not in a place where I can access speedy enough internet to watch it again but when I am, I'll watch it again and focus on what he said.
Considering he gave this speech to an audience of Egyptians across the spectrum, from moderate Islamists to Salafis, to Al Azhar and Christian clergymen, to secular politicians and youth and nationalist figures (also secular) such as el-Baradei and Zewail, I cannot imagine he would have said something like 'death in the name of Allah is our goal'.
Especially as, since the 70s when they renounced violence, the MB's activities have revolved around helping Egypt's poor, attempting to squeeze some kind of political concessions out of Mubarak and being a glorified professional's syndicates. The brothers are mostly a bunch of highly qualified doctors, lawyers, engineers and businessmen. They're more interested in free market capitalism and making money than 'death in the name of Allah'.
Redkaos has got it absolutely spot on. The biggest obstacle to a true Egyptian democracy is not the MB. It is SCAF. The Muslim Brotherhood are the most organised block outside of the state apparatus in Egypt and yet only managed to squeak past a secular nationalist running by himself by a small margin. Any moves to monopolise power and build a dictatorship will come under fire from just about every single group in Egypt, including the Salafis.
For someone who doesn't have an understanding of Arabic or a deep understanding of Egyptian politics and society, it is difficult to convey exactly how the state media (which is still what a huge number of Egyptians watch) went about the second round of elections. The propoganda and lies against the group was excellent and devastating.
Egyptians want security, food, jobs, education, healthcare, hygiene, infrastructure and a whole lot besides. And they want it quick. Many are unrealistic about what should be achieved in the next few years. My own personal opinion? The decision to field a presidential candidate at this time will be one of the worst decisions made by this organisation. Their credibility will likely be in tatters by the end of Mursi's 5 years in power imo, if he is even allowed to get that far by the military and the Egyptian deep state, which tends to be against Islamists. I suspect they'll eventually go the way of the wafd party.
Just my own personal opinion though! If the media is to be believed, Egyptians have just elected the anti-christ who will enact the worst areas of Iran, Afghanistan, Saudi, Pakistan and the Gaza strip, ban alcohol, massacre or forcibly convert the copts, introduce a religious police and make war with Israel. All this this will be with the consent of the fiercely nationalistic, secular army and the 70 million Egyptians who did not vote for the Muslim Brothers.