"disconnected departments" is the right phrase, WHBM. Each department has it's own priorities and, as long as they complete them - they can tick the box. The amount of time communicating with the departments before and after them in the process? Minimal. You can see this at each step of the process as the staff need to get rid of pax as fast as possible to be able to tick the box. If there is a problem down the line for the pax? Not their problem.
I saw this start in general commerce and banking in the late 1980s as a part of the whole outsourcing and decentralising fashion idea from the USA. Over the last 30 years I have come to the conclusion that it was only done to shift blame down the line and away from the Board. For example, that major IT failure earlier this year: has anyone of the main board lost their job ...?