klunderbunker
Welcome to My (And Not Sly's) House
Actually there is an obvious and practical reason for them, the influx of talent you already alluded to. X-division gets one segment. Thus, one on one matches makes the X roster too thin. The most famous match in the history of the division was a triple threat.
Yes it was. It also had a long story building up to it rather than having them because the rules say we have to. There's a story between King and Sabin and they've done a solid job of building it up. That's the match they should be having. Petey adds nothing to it whatsoever and is a distraction from the interesting story.