I would love it if everyone who carried a gun could at least shoot MM on the IDPA classifier. It's a pretty low bar but I'd wager most permit holders couldn't pass it now.
However, I dont agree with requiring that level of skill. Getting good with a gun requires a significant investment of time & money, and if you set the skill bar too high you're restricting carry rights to people who have the resources to practice. I think poor people have the right to self defense too.
As it stands, I don't know if the shooting test in any state is really useful. The shooting test in my last state was basically "can you shoot 50 rounds downrange without hurting yourself." Before that, I got a FL non-resident permit with a hunter's safety card (as my proof of firearms competency) and never fired a shot.