Conditions of raw material and processing.

For tallow, the very raw, natural process is described (best case). Not considering the impact of feed (grass vs GMO soja), use of antibiotics... Also no packaging is shown.

For canola, the highly processed form of canola production for highest yield is shown, wrapped in a big plastic bottle (worst case), but there would also be more "natural" ways of seed oil production like cold pressed without additional extractions solvents....

What is the author of this comparison trying to suggest?