I started my electronic career in the late 1970s repairing equipment built like your microscope module. That right-angle standoff is actually a hinge so you could swing the board up to work on it without removing it (as someone has already commented). Saw lots of those in my day.
Wire-wrapping was common then as well, and quite reliable. The fine gauge (32AWG) wire wrapped around a square pin was deformed on the sharp edges and formed a gas-tight connection. Lasted for many years. The wire-wrap on your microscope module is likely still good today.
Equipment that had multiple boards plugged into a backplane often had the connections on the backplane made with wire-wrap (DEC mainframe computers for example). I've made a number of prototype boards in the past using wire-wrap instead of soldered point-to-point connections. You once could easily get DIP sockets with wire-wrap pins. I still use the fine wire for making 'kludges' ('bodges' as you say Dave) on prototype boards or for making repairs.
I'm enjoying your videos - interesting and informative. Keep 'em coming.