What originality actually means here
It is not about a novel thesis. It is about whether the page contains a fact a competitor could not write without doing what you did: a measurement, a process, a failure, a price, a customer's exact words.
A page can be entirely conventional in argument and still original, because the evidence is yours. A page can also be radical in argument and unoriginal, because the argument came from somewhere and no evidence supports it.
This definition matters because it is achievable. Nobody can be told to have an original idea, and almost anyone can be told to write down what they measured this week.
It also survives scrutiny. A page with your data is defensible even if the prose is ordinary, while a beautifully written page with nothing behind it is not.