Not origin of the species, but origin of life.
They very patronizingly put it that Darwinists say Darwinism has nothing to do with the origin of life, but to them it's either God or evolution...and it ain't God.
Now if I understand you right, you're saying that anyone who believes that evolution is the mechanism by which life on Earth originated really doesn't have an "actual understanding of the TOE"...
Is that correct?
They may or may not have an actual understanding of the TOE. However, when they start talking about abiogenesis, they've moved to an area that is outside what is covered by the TOE. And if they say that origins of life are part of the TOE, then, yes, they do not have actual understanding of the theory.