Process efficiency is about doing less to achieve an objective than you used to. This is the idea behind LEAN. If companies keep adding tasks then this is the exact opposite of LEAN. The only way doing more tasks makes sense is if said company is expanding into different markets, but that can be challenging and distracting from the core business (a reason why many non-core tasks are now outsourced.)

Software automates processes. Processes are currently designed with human decision makers in the loop. If you want software-enabled process to achieve maximum productivity then humans must be removed from the loop. This is the true objective of AI as it is being deployed and hyped today.