It's important to note the target audience of these writings are usually academics who already familiar with the field. This means they get to use a lot of jargon and concepts established by their peers without having to explain them first.
There are definitely other texts (such as the YouTube video linked in another thread) that are easier to understand as a casual observer.
However the other aspect is that as you alluded to, a strong poststructuralist belief is that common language, by nature of being made to describe the current world, always makes it easiest to express ideas that are already commonplace. Thus to create new ideas one must also create new language.
There are definitely other texts (such as the YouTube video linked in another thread) that are easier to understand as a casual observer.
However the other aspect is that as you alluded to, a strong poststructuralist belief is that common language, by nature of being made to describe the current world, always makes it easiest to express ideas that are already commonplace. Thus to create new ideas one must also create new language.