DNA=Sum Total of Biological Information?

Reading this informative post on recent research into Tuatara genetics, I came across this startling claim:

The authors do not discuss the more fundamental question of how far DNA information is responsible for the form of organisms, or whether the form of organisms is determined by other information embodied in embryonic cells. This question is not being asked by Darwinists, who insist that all biological information must be traced back to the genome. However, some biologists (including those advocating Intelligent Design) are actively exploring alternatives.

I don't necessarily believe the part about Darwinists insisting that all biological information comes from the genome. To me, it's always been obvious that the cell contains a lot more information than just that found in DNA. To say other wise is tantamount to saying all the information needed to build a house can be found in the bill of materials. I find it hard to credit that evolutionists deny something so obvious.

Of course, when you tote up all the information in a cell outside the nucleus, it just moves the goalposts for abiogenesis that much further back.