Why? What do you see as negative possibilities from his participation?
IMO, it's not as much about the title as another much needed competition experience before Worlds. He has not had a "normal" competition since comeback, what with the emotional roller coaster, poor SP results until yesterday, the aborted TEB, the off podium GPF, etc. He finally performed his SP up to his standard just now and once, and hopefully will do the same today for his LP with raised difficulty, with the additional 3A that he has not included in his program for a few years now. However he will do today, it will do him good to have another experience of performing both programs really well in a competition. It will go a long way to normalize his competition mindset and emotions, boost his confidence, have further adjustments on these programs if necessary, then he will really be firmly on his comeback path, having put the extra and obstructing distractions behind him. Going to the 4CC this year demonstrates and deepens his commitment to compete.
I believe everything happens in life to help one grow. Until one does, the same issues will surface again and again. So I hope Patrick makes another giant step forward on his life's path having dealt with the recent turmoils and challenges. That itself is a huge success.
There is a little over a month before Worlds after his trip to Taipei and back so there should be enough time to recover from the travels and to train further before Worlds. The prize money will help too since he missed out on TEB and GPF.