On a technical level, DTGI (diffusion-transformer generated imagery) is a subset of CGI (computer generated imagery). All DTGI is also CGI.
Computer is the medium, like painting on a canvas. You can paint, or you can pay someone to paint for you.
On a conceptual level, DTGI is a big change. From painting, or paying a creative to paint, to paying a faceless corp to generate a permutation of paintings by other people (who probably did not consent to that).
If creator is transparent about it, I would appreciate it, but as someone said once I’d prefer to just see the prompt since that is the extent of creative input.