Sorry, but all I am seeing is you trying to force your statement as a fact with a comparison that is mixing apples with oranges. It is evident that you are not in favor of the series direction, but calling it bad since you don't find it to fit into your viewpoints, I would hardly state that is something as you call "common sense".
And just because you like it doesn't make it "not common sense".
Mixing opposites when trying to achive only one (for example, sweet) is a stupid move.
An exception to the rule does not invalidate the rule.
You CAN mix opposites - but one has to be very careful as it backfires 99% of cases. But in such case, you generally switch.
Take FMA - it has comedic moments and dramatic moments, but the art changes to fit them.
Imagine Huges funeral with Edward making this face:

Not the same, is it?