Sadly that is true. A Ph.D thesis should have a minimum of 200-300 pages.
This is why I hate academia. It's based on rubbish like how many references your paper gets, or how big your vocabulary is. Not so much the actual idea you're writing about. Sometimes I read an entire page which could be summarised in one sentence without losing any content at all.
Source: I work with academics/researchers and see this every single day.
Gotta get out of the rut, really. In Academia yes, lots of Socratic rhetoric with little proof, but in the scientific community... you gotta build your own project and prove it works, submit it to others to reproduce the results and confirm the findings.
I don't know what Satoshi would get, probably a PhD for the work, but for that white paper... It's readable, It was no doubt written for the masses, an excellent work of advertisement.
I have always wondered though, can we find others work by Satoshi from simply examining their writing style and coding methods? Off topic but, it would be nice to see if we could find examples of their work elsewhere.