Or they can share to their blurblog, which is a shared stories blog. When users share links to their blurblog, the tweeted link goes to the user's blurblog, like so: http://samuel.newsblur.com/story/family-feuds/4e65d5. It includes their commentary and offers a place to reply to the user. Alternatively, you can turn on a setting that takes you directly to the story.
I think Feedly's intention here isn't what's best for users, since you don't have the option to comment on the story and have people reply to you, which would necessitate its own page. This is more of the Send To feature described above, and I think it's part of their drive to find additional revenue where there isn't much.
RSS is not a growing market and I think only independent developers with small costs will end up alive in a few years. Feedly will either have to evolve and find a bigger market, or pare down the cost of hosting the majority of Google Reader expats. And that doesn't square well with taking investment.