"This 8K May come under either or both of the following items:"
You did LOOK AT the 8-k, I assume. The Items under which it was filed aren't the ones you listed.
"An 8K filing basically is Leo making himself and the company responsible for its content, which would be the content of the PR."
The company is responsible for the content of the PR without the 8-K filing.
"In a sense it legally codifies what was in the PR, and it also may imply that the added data may be a material event affecting company value and share price."
An "A" for creative writing. "D" for substance. What added data?
This 8-K serves only one purpose and that is to supplement the distribution of the PR itself. Some research software tracks 8-Ks...it's that simple.