Hello99,
I never understood the Gemara in Berachos or that Rashi literally.
I hadn’t noticed your use of the term “akin”, only the term “issur gezel”.
If the point is that it is so morally deficient to copy ones IP that it can be considered “akin” to gezel and assur despite no literal gezel, I can understand that, although it’s certainly not a chiddush I would be comfortable saying on my own. (The poskim who said it, if that’s indeed what they mean, certainly do have the shoulders for that, though).