There is nothing to prevent them from releasing HD rips, but its not their "style". They throw out whatever comes out first as fast as possible. The end result is a speed sub. Its not great, but its not bad. Since this anime far more visually appealing then DB other projects, Soul Eater would likely be reduced to something less then acceptable.
If you're on DB's staff and want to start producing files that are more then twice the normal size of a DB file, then go ahead and do so. If you are just a fan like I am, then either deal with the current rate at which these are being released, or hope DB or some other speed subbing group picks it up. Just be prepared for "low" quality.