Yeah, his automated gun phobia argument is dumb. Should we ban all future tech development because some people are a scared of some things that can be dangerous but useful? NO.
Plus, ironically, Germany's Rheinmetall is a leader in automated anti-air guns so the people's phobia of automated guns is pointless and, at least in this case, common sense won, but in many others like nuclear energy, it lost.
It seems like Germans area easy to manipulate to get them to go against their best interests, if you manage to trigger some phobias in them via propaganda. "Ohoohoh look out, it's the nuclear boogieman, now switch your economy to Russian gas instead, it's safer"
I think the argument was about automated killing, not automated weapons.
There are already drones from Germany capable of automatic target acquisition, but they still require a human in the loop to pull the trigger. Not because they technically couldn't, but because they are required to.
The switching to russian gas is bad for know, but was rational back then. The idea was to give russia leverage on europe besides war, so that they don't need war.