I think it goes deeper than that. In this culture that values transaction over interaction, Zettelkasten (and similar systems) offers a path for deeper reflection. Perhaps in reflects an understanding that more is not better as we reach the limits of sustainability and that simply more is not better, perhaps understanding deeper (connecting ideas rather than collecting them) offers a more fulfilling path.
Of course, I also like playing with new and shiny toys too… in case enlightenment lies around the corner. Falling into the rabbit hole of playing with the tools rather than doing the work…