[This is what I get for posting late at night.] I deny the bizarrity. There is a lot we don’t know about the sonnets: we’re not sure about their subjects or intended audience. But I’m denying the conclusion you are attempting to draw from this.
To quote from the article in the OP:
What this essentially comes down to is “Shakespeare must have experienced the things he wrote about,” which is an enormous assumption. You haven’t convinced anybody to make it.
Then please get around to it already!
I was not familiar with that theory.