I don't have an issue with YTW dying perse (although it came out of nowhere), it's more so how poorly it was done.
Every 6 GG's death was pretty memorable and felt like the climax to an arc or battle (Ouki, Duke Hyou, Kanki).
Just an arrow feels a bit underwhelming for a character that has been there since the very beginning.
I have no idea what to make of this.