For a direct comparism, I pasted your text into another wiki to see how it looks with the Vector template:
Now you've done it!!
On my monitor the lines are on average 30 words wide, way too much, way hard to read.
But it also pointed out a BIG problem with the dodgie er doogie template, its set the text to 90% of the users chosen font size. What a bunch of arrogant [complex scatological string of expletives deleted] the designers are, why can't they respect my font choice, how do they know what my monitor resolution is and how good my eyes are? Do they expect me to change the font choice every time I swap to their tab in the browser? </rant> I feel better now. :-)
In which case I also think vector is ok.
But we need to maybe tweek the css ourselves, at least to limit the width of heavily textual documents. (Just an aside, thats why the doogie template looks like a blog: because blogs are all text, the good ones limit the width so they can be read easily)
As I read the docuwiki manual it allows individual pages to have local templates, so I'm not saying that all pages need to have the width limited, just those that are mainly text.
Cheers Lex