In my opinion your (over) reaction is not logical, but emotional. This is by no means meant as criticism.
You have a set of expectations with high standards, and almost certainly live your life by those standards. But based on your comments, you are offended when others do not share your standard.
The logical error is, with ample evidence, provided on this forum, of what to expect from BTS you continue with unfounded expectation.
It is highly unlikely that BTS will change. That leaves 2 choices 1.) accept that there will be delays and poor communication. 2.) do not order from them.