The only advantage I can think of is that it is cheaper than Gallery. Otherwise, no economy in a herbicide that does not stop a wide variety of broadleaves or last very long. Dow says florasulam has a soil half life of 14 days. Isoxaben has a half life of 100 days or at least 1/3 of the growing season for me or all season for most people on the continent.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738