I think the problem is more that they weren't honest about the origins, even if we disregard the point where they themselves break the license terms.
> DeepDelver recognized that Pathways looked a lot like Sim.ai’s open source agent-building product called SimStudio and asked Delve if it was based on SimStudio. The Delve folks said they built it themselves, the whistleblower contends.
If they were upfront about that it was a fork, and attributed it, sounds like there wouldn't have been any issues here at all.
It's possible their spokesperson was not informed about SimStudio being the basis for Delve. Lots of people in sales and marketing do not know little about how open source software works.
I'd be more concerned about a shareholder lawsuit if Delve told their investors that they owned the IP of said platform.
That's fair, and a bit ridiculous considering the license allows them to do what they are doing, minus lacking the attribution. People are too illiterate on software licenses. If you're going to use open source software, learn the licenses you're using! I'm pretty sure GitHub literally shows you what you can and cannot do with specific licenses.
Edit: Yeah they do. There's no excuse for goofing this up.
https://github.com/simstudioai/sim/blob/main/LICENSE