As a political move it's not a bad one. It saves the state money (eliminating the mandatory appeals), and it forces the pro-life fiscal conservatives who want to oppose it to explain that they're actually pro-death and in favor of spending more money, not less. Which puts them in a conundrum. Espouse their actual views and let their opponents use it against them, or stay quiet and irritate their constituents who want them to be in favor of executions (irrespective of the cost).
And all the while, it really changes nothing about the status quo of executions in the state, they weren't going to happen before this commutation, and they won't happen after.