The point is, all other factors are part of the equation.
Oil doesn't move without other factors. And slowing global demand for oil is a symptom of those factors.
My point, very significant drops in oil prices and the associated gasoline prices, have resulted in a booming economy in the past. I don't see it happening today. It is because gasoline prices are not the only thing going on.
Also at this time, the oil industry has become a larger percentage, of our domestic economy. Combine a lower percentage of the population actually earning paychecks, and a oil industry that has been hiring like crazy for a few years, the impact is likely to be greater than before. Lots of associated businesses have been doing well due to selling, pumps, pipe, switchgear, cables, housing, heavy equipment, etc that are going to see a large drop in sales.
I believe lower fuel prices are a net plus for the economy.