If this trend results in more miniseries versus long-winded, open-ended season after season that go nowhere, I’m all for it.
Star Trek: The Next Generation serves as a good example; the first season was rough. Didn't hit its stride until the second, when Riker grew the beard.
I think the thing I like most about it, is that it treats its audience with respect. The rough plot of every episode can be followed by almost everyone but they don't dumb down the dialog or keep repeating the main plot points over and over like modern TV. There is almost never any filler and each episode unfolds rather than simply leading the viewer from scene to scene.
As a result, writers are incentivised to write convoluted, twisting, mysterious threads.
They're not required to finish them.