You apparently haven't been paying attention for the past few years. Content that's not open to DF eventually gets released to it. Until that happens, the hardest stuff is groups only because said content requires very precise teamwork and precision and those are elements that the DF always lacks. For every person who keeps saying they don't have time for a static, two more people find a way to work with the limited time they have. Not every piece of content is going to be for casuals and speaking as a casual, I am fine with this. You already have a normal mode of the Alexander raid, which is what people wanted for casual play and is also in the DF.

Get a friend or two, have their friends talk to their friends, and you'll have a group in no time and a group that will be better than some random in a DF.