Hot take it seems, but you can appreciate the hard-work authors and artists put in their works AND STILL criticise the way their stories are written/end. They're not mutually exclusive, you know? Like take JJK or CSM as an example, were they well-written and drawn? Yes, but were their endings absolute dogshit? Also yes.
If it is about jinx people have the right to complain.
Writing and drawing are considered parts of the art world. When you release your art into the world for the general public to read or view you have to be prepared for critiques and criticisms. The medium of manga, manhwa, or manhua is no different. Once released to the public you are allowing your art to be to be criticized and disliked by the masses. Just hearing glowing reviews doesn't allow an artist to grow.
GOD STOP COMPLAINING FOR EVERY SINGLE MANGA OR MANWHA THAT "ohh~ the ending is so rushed blah blah blah" STFUUUU ATLEAST WE EVEN GOT AN ENDING INSTEAD OF IT BEING DISCONTINUED. STOP COMPLAINING AND JUST APPRECIATE THE HARDWORK THE AUTHOR/S AND ARTISTS PUT IN.