I do not think there is a clear answer to this. I can understand some people taking the position that a poorly written, hard to understand patent does not deserve to survive, especially if if the people who wrote it are trying to be clever by having it mean what they say it means if it gets litigated.
OTOH it can also be argued that trolls posing as public interest groups are operating in bad faith and the fact a patent is hard to understand has been par for the course for so long, that making patent holders review their patents for clearly defensible language is unfair.
