I think that, in this case, it's an example of somebody focusing so much on one specific kind of work that all other types of work and the craft that goes into them are ignored.
For example, if you really enjoy A&E's original mazes, you are probably going to focus on that kind of creativity. Making characters, backstories, scenes, settings, all of that.
Where this can go wrong is the deductive reasoning that if a certain type of creativity is absent, then no creativity must exist.
HHN originals are creative and require effort to make.
IP houses lack HHN originals.
Therefore, IP houses lack creativity and do not require effort.
It makes sense if you don't think about it.