I think the OP raises interesting points. Generally agree but believe it could also depend both on individual writers and the comedy style. Experience can also feel a bit too seriously close even for, say, bitter sweet.
Plus there are over 10,000 ideas in this section. Many are no doubt good or very good. Those who own the tank may place emphasis on the condition of the pipe. They are not wonderful at siphoning off old water.
That's not an age thing. It's the masonry. I'll always be astonished how it was my generation that reinforced it in all spheres. Understandably offspring can be wary of all its words. If many knew what was originally said without truth by today's 35-60s - and the 70-somethings - there'd be more than just an internet revolution.