Well, I have a PhD in mathematical linguistics
Wow! - Genuinely impressive.
Can I ask your opinion on Hemingway Editor?
I use it extensively in producing content for our business marketing, blogs, etc. But I have started writing something to perform a similar task but more tailored to our needs. For example, in marketing the ratio of first person to second person pronouns is (thought to be) important. My version makes extensive use of Lingua::EN::Fathom.
My attempt is not very far developed and I'd love some informed input before I go much further.