Stuff costs money. If you think it doesn't then you are the one who should be providing proof. The correct default assumption should be that all things cost money, and all things must be paid for. There is, after all, no free lunch.
Me? I didn’t make the unsupported claim.
Again no one outside of Larian knows the answer as to what resources were devoted to this and how it impacted the overall development of the game. People are free to speculate of course and offer opinion which is all that it is in the end. Speculation and opinion.