This may be so, but shows used to have 22 episodes in the US, now series have 8 or 10. So far, far less work yearly, less cramming to get shooting/processing/writing done.
You'd think this would give more time for better takes, directing, acting.
Guess not.
It stunned me to see ie what actors wore in Game of thrones in later series, when budget was high. A robe which was on screen for 1 minute max, and I focused on face of actress and scene so didn't notice it at all, had such details and beautiful ornaments sewed in by hand, crazy amount of work to create 1 unique piece just for that scene. Multiply by X actors there. Must have cost a small fortune to make, even for such a well oiled machine like Hollywood. Compared to ie Streets of San Francisco, guys wearing the same basic suit outfit over whole series.
You're comparing one of the most expensive series ever, with low cost series.
And even action series, in the old days, would film 60 min. episodes, with live action, explosions, car scenes, really things are very cheap now with CGI.
Imagine having to retake a scene with real explosions?
A bit part of making shows with 22 -24 episode seasons was having a cast of circa nine main characters, so you could film three of them at once.
Audiences generally respond better now there is not network pressure to deliver half a year's worth of new episodes per annum with shows where their favour characters are the main characters every week.