Earlier quoted context omitted.
This is just another instance of the classic Soviet problem. A scarce resource is allocated by a government bureaucracy instead of a market, and the bureaucracy's design is imperfect, so nonsensical incentives fall out of it sometimes. There's no irony. It's just kind of quirky for the West to manage flight/landing slots this way, instead of an auction (as the FCC does with spectrum).
I used to work for a consulting company and heard similar stories for IT budgets. Companies nearing the end of financial year with budget to spare would scramble to get more consultants in to spend the remainder, otherwise the following year their budget would be scaled back to whatever they actually spent.
It's not surprising they create similar behaviors.