Looking at Texas school funding laws, I expect the complexity is aimed at Charter Schools. I didn't look into the details, but schools with poor attendance can

Looking at Texas school funding laws, I expect the complexity is aimed at Charter Schools. I didn't look into the details, but schools with poor attendance can have their "excess" local revenues claimed by the state (state law specifies what excess means). Charter schools don't have local funding (and can play games to pick their students). The measure above appears to be for adjusting a relief measure for the elderly and disabled downwards when their obligation is reduced (which if it only reduces the relief, could reduce it to 0 over time).