Hi there! I believe the mention of "trust" is related to the paper Reflections on Trusting Trust by Ken Thompson https://www.cs.cmu.edu/~rdriley/487/papers/Thompson_1984_Ref...
Though I do think the tagline used could definitely be improved from a marketing standpoint.
Perhaps you're old enough to remember the Sledge's[1] motto: “Trust me… I know what I'm doing.”
HHBS Perusing the pnut site I did not understand either why this is software I can trust.