Who goes back to edit? Very few people bother. So these reviews remain, and they can give a false impression, because the first couple of episodes may be very different from the rest of the drama. For instance, Doctor Stranger had the very best first episode, tight, gripping, eventful, dramatic etc. Then the rest of it was just ok, and the ending, although “happy”, sucked big time, with many questions unanswered and the main leads… oh well, I don’t want to spoil.
But, I mean, if I had written a review after the first episode and then forgot about it, people would think it’s the best drama ever made. Which is far, far from true.