While it's fine for Afghanistan it was designed for a cold-war tank battle. If you don't need to kill tanks or dodge air defences a propeller-powered plane that looks like something out of WW2 is a lot cheaper... and that's what's being developed by a bunch of firms for counter-insurgency.
There are already several of those types of aircraft to choose from. My favorite is Embraer's Super Tucano, of which the US is buying 100 for the Afghan government.