On one hand I simpatise with the problem, on another Stackoverflow is one of those platforms where the close random hammer for seemingly random reasons was always used.
In total I think I have gotten more useful answers from closed posts than non-closed ones. Someone at SO have greatly underestimated the value of having a handful of almost identical questions each with their own answers.
If anything the network might have lost traffic because moderators have been too efficient in closing duplicate questions before they got useful answers.
That said, AI garbage posts do have to be fought with fire.