Besides being dead as a reason for it being fixed, I think it might also reflect the high reliance on the oral transmission of texts (which your excellent examples I hadn’t heard about emphasize)
The name for learning (sacred) texts in Sanskrit is “shruti” , that which is heard.
Sanskrit grammar did change over time, at least until Panini wrote down the rules around the 6th century bc.
The name for learning (sacred) texts in Sanskrit is “shruti” , that which is heard. Sanskrit grammar did change over time, at least until Panini wrote down the rules around the 6th century bc.