The "personal drama" technique is a weak and contrived writing device which transforms these programs into flat, predictable b-grade melodramas. This style is typical of a formulaic hack writer's work. It is selected because it is cheap, fast and requires no particular talent to contrive. It is the "Bondo and boobs" approach to screenwriting. Such work deliberately appeals to a low brow audience of limited education and culture.
If you feel yourself instinctively recoiling at this kind of work, congratulations! That means you have some modicum of literary and dramatic taste.