I matched on a ship but chose to write for an individual character prompt in another fandom instead. I got two shippy treats. So I would say the ship matching worked for me as a recipient and didn't negatively affect the single character focused fic I came up with myself - what mattered more were my recip's prompts and how they inspired me.

Also what a great community challenge! It was awesome to see so many treats! 🧡🖤🎃