in scientific writing, you need to take

100 articles at 6 pages each

and condense them to 1 article of 6 pages

And add how your method/insight moves the conversation forward, along with describing your method/insight.

The reason why scientific writing can be hard to read from the outside is the 100:1 compression. Decompression of that can require some knowledge of the field.

Also, some people are just bad at writing.