Why do Manga & Anime defuse tragic situations so often? Why do Manga and Anime defuse so often tragic situations? Moments that can be tragic/serious are often immediately defused by some hilarious moment and some stupid face of the characters. I personally find that disturbing that a plot cannot focus on something serious for a little while. Is that a stylistic choice or just a way to target a particular audience (i.e. children).
From your comments, I gather you don't like the use of Anti-Climax in M&amp;A as a medium. Though it can be jarring, Anti Climax can be great if used correctly. 


  Anticlimaxes can work well if it's clear that the subversion of audience expectations is the point, either for humorous purposes (such as the Anticlimax Cut) or as a more serious commentary on the genre of the work. If the Anticlimax is unintentional, however, or if the author's purpose just isn't sufficiently clear to the audience, the result is serious audience frustration. Use caution. 


I think the root cause of this problem is discussed quite well on TV Tropes.


  Not all anticlimaxes are intentional, though. Oftentimes, they are caused when the story writes itself into a corner. Other times, it's caused when the writer realizes that their planned solution just wouldn't make sense compared with the logical one. Sometimes, it's caused when there are teams of writers that don't communicate very well. The planned resolution of a Story Arc is nullified by another writer, who might have written out the plot device intended. Sometimes, in the case of film and television, it's caused by budget constraints or unexpected cancellation. It's rather rare for unintentional anticlimaxes to show up in single works, usually popping up in long serials where there isn't a chance to unobtrusively go back and rewrite some pivotal moments to set up the proper climax. 


The problems stated above are quite common in the Manga and Anime industry and thus as you seem to have found out can lead to disappointing endings to a great story.

Source: You've been warned TV Tropes link. Anti Climax