My only surprise is Deb Goldberg, but it looks like they had a tough choice choosing between Goldberg and Murray. Why they don't seem to think Andrea Silbert is on the same field, I don't know.
If anything, the endorsement for Bonifaz seemed strongest:
If ever there were a natural-born reformer, it is Bonifaz. He is perhaps the only person ever to seek office in Massachusetts who is also the winner of a MacArthur “genius” fellowship for his pioneering legal work in voting-rights and campaign-finance reform. Where others see process, Bonifaz sees policy. He has the rare political ability to see life not as it is, but as it should be. He has the idealism and the energy to try to make our government better by making politics accessible to all, not just to the well connected and the well financed. If you think politics is plagued by cynicism and corrupted by cronyism, then a vote for Bonifaz is a vote for hope that the system, and society, can be made better.
And, finally, you wouldn't read this in the Boston Globe,
A vote for Dunkelbarger might help Lynch make up his mind whether he’s a Democrat or a Republican in drag.