Summa040 , including approved driver updates during Autopilot is something we are looking at and would like to deliver for all the reasons you highlighted. Another change we are looking at is how to better handle driver updates so that the network/bluetooth/video and other stuff like that doesn't create the issues while the user is actively using the device.
Be very careful with trying to deploy drivers as a script during Autopilot, it can cause timing issues. For example, it could cause the network to blip while an app is installing and getting bits from the web. If that app isn't robust to handle a network blip, it could fail, and depending on your Autopilot settings could cause issues. More reasons we'd like to integrate it into Autopilot, but there are some interesting technical problems we need to solve to make that happen first.
Hope that helps.