So it's only the means of taking down prey that defines a pack? If that's the way it is, that's the way it is, I suppose. I just think that if you have twenty or thirty similarities and only one or two differences, then it would be more similar than not.

I just thought that maybe if animals that also hunt smaller prey in a pack, like chimpanzees, dolphins, and orca are considered pack animals, than a group of cats exhibiting similar socially complex pack hunting techniques would also be considered pack animals. Especially if, when left alone, they formed these groups naturally.

And that was my major contention: the idea that cats could not be pack animals, which OP stated as his own main point. I really don't think that he and I are saying the same thing, but I respect your viewpoint.