This does not impact the reasoning at all. The fact that it is “one of many” does not cast doubt on how large the price is relative to other expenses.

If anything, this weakens Montoya’s argument because it provides less of an incentive to switch to ionic liquids

This does not impact Peterson’s reasoning. Peterson is primarily focused on the costs outweighing the benefits.

If ionic liquids can be reused many times, their higher initial cost might be made up, making them more cost-effective in the long run. This directly challenges Peterson’s main conclusion.

This does not impact the reasoning in the argument at all. Why a company chooses to switch to an environmentally sound process is completely unrelated.