tv shows like these are a flawed format of experiencing a story
a play or a film or a short series has a story developed in a way with a thought-out ending. that's why a good movie has a slow beginning, they need not use the cheap tricks to lure you in.
tv shows - that mindless orgie in "beautiful" faces and fancy clips - are in their nature an unfinished concept and made with the now silly cliffhanger principle to sell and sell in an endless stream until the money machine breaks or it runs out of steam.
yes there might be exceptions but this is why shows are often best in season 1, maybe 2 or 3, and derails later on.
other tv show formats like sitcoms and comedy shows doesn't rely on real melodrama and therefore works with sustained quality
it's just like jerking off your brain, easy stimilus by watching good looking people and a interesting concept for a while and move over to a new show.
don't expect a real ending
