Sure but a sudden change in the taxes on one item are obviously going to lead to a higher demand than otherwise. Much like an economic stimulus package. Plenty of those people need support and can't afford to pay more so doing something isn't terrible, but if the issue is supply, which it seems to be, then you're just going to risk running out / need to restrict usage

Actually, is there a reason they wouldn't be worried about supply that I could be ignorant of? Last I heard a few tankers had turned away, people were preparing for a prolonged war and there were issues with rural deliveries