90% of SCOTUS cases are narrow, specific, and draw little attention. If we look at the publically prominent ones (abortion, marriage, 2A, political funding, civil rights, affirmative action, and the like) there has been a 70 year trend towards finding individual liberties and limiting government action/regulation in these areas. Along that path in some cases, they had to reverse prior cases (think, Plessy), but in others their rulings were new enough in nature to not require formal reversal of an earlier case, and in still others they were just tweaking (rather than reversing) earlier rulings.
What we have not seen in recent memory are many "backlash reversals". By this I mean reversing of ruling that expanded or granted individual liberties. Yet, both sides have such actions on their wish list (Roe/Cassey, Heller, CU, Obergefel, etc). I think the court is aware that reining in individual liberty is more difficult than extending it, so I am hopeful that they are very cautious and place a renewed value on stare decisis.
While the executive and legislative branches tend to swing wildly from election year to election year, the court has been on a more consistent, less volatile, cadence for decades. Congress should respond to the direct wishes of their constituents at that moment even if that means big swings in policy year on year, but I believe the courts need to play a much longer game. Our core constitutional liberties should not be on the table every two years. To swoop in over the course of a year or two and upset the current expectations for a large number of these liberties will set us on a course where SCOTUS joins the other branches in short-term political swings. - which in my opinion, regardless of my views on any particular issue, is not a good thing.