However, it's not just a pain to be worked around. In the US, since the DMCA section 1201 became effective in 1998, it is illegal to try to work around DRM. Mostly.
Every couple of years, the Library of Congress gets to make a list of exceptions to 1201, of specific situations where you can work around DRM without it being illegal. Most recently was October 28, 2015.
Many people still objected to section 1201 on principal that it prevents tinkering, but the Library of Congress' list of exceptions has generally kept people placated.
As for context of their specific case: I'm not totally sure. User csydas suggested that this case became possible because of certain exceptions being removed from the latest version of the list (then some time for the EFF to compile the case). This seams reasonable to me, but to know for sure would involve legal details about the case that we don't have yet.
Like, if the scene is some dinner party, but right before you started watching someone had set a bomb under the table or something. What's the bomb here?