Re: Odd
This case was very explicitly not about "look and feel" but underlying architecture and design.
Your absolutely correct point on "load code (sic) tools tend to converge on the same paradigms and concepts" is key here as Pega was strikingly different at the time and needed to align more with the changing market to remain competitive and did so at least in part by misappropriating ideas from Appian.
You are also correct in saying that the US courts and legal systems don't understand tech, but part of my role was to explain to the lawyers, judge and jurors what was going on. This was not easy as the concepts were much deeper than reported.