I do play ladder but Ill respond anyways. When you loose in a 1v1 game, you only have yourself to blame. Alternative is to deny that and blame it on stuff like BO's, faction difference, map, etc etc. But in the end you can't fool yourself and get frustrated.
That is a big part of what makes 1v1 feel more competitive and stressful than teamgames and it's partly the reason why some people don't play it. Also 1v1 requires more attention and working memory from the player than teamgames.
That said, this thread may accidentally imply to people that ladder is somehow less played. It really isn't. It's actually a quite popular matchmaker and has been that way for years. That said it is true that the 2k+ bracket has all but died out. Prob because there is very few streamers playing or casting high level ladder the past 1 to 2 years or so, which induced a vicious circle of fewer high level players playing > longer que times > even fewer players playing.