Nah, not ruined his career. If there is one player in the world where you can be sure that he will be right back in the mix it is dev1ce. He has lost so may times before he became the goat, always struggled with mental and physical health, has always been great no matter how good his team is for such a long time now.
This video talks about this a bit more https://www.youtube.com/watch?v=wFfk0VETNyU , just a great video to understand who dev1ce is.