Marvelous 10 year work turned to dust at the end

Rating: 3/10 (4 May 2019)

It was painful to watch this movie as it reached its conclusion. Great movies don't need a happy ending. Infinity War was a perfect example. Endgame, however, left me 10 times sadder. Sad, bored, annoyed and disappointed. No need to state the reasons, as many reviewers before me properly did that.
What amazes me though is how the Russos did a fantastic job with movies like The Winter Soldier or Infinity War and came up with this grotesque finale. I cannot conceive any reasonable explanation, other than Disney having a hidden malefic plan to slaughter great franchises (for Star Wars they decided to go with a slow painful process). Whatever it takes, right?