This isn't remote firing though. At least if I read it correctly, this just moves all the functions of a spotter into the reticle itself, where it automatically does calculations. You still have to aim, pull the trigger, etc.

Otherwise, I don't disagree with anything you've said, except to perhaps posit that despite the general utility of a 4-man tank, how much combat is going to be offloaded to drones that can be just as lethal without putting any men in harm's way whatsoever?

Edit: It's also probably worth noting that with a few more iterations of the tech, they can do away with the pin-blocking technique they're using and just calculate more in realtime, perhaps with a secondary trigger or button to initiate 'live-targeting' so that the trigger can be manually activated by the trigger pull instead of on a delayed mechanical system.