Maybe it's a better match than I remember it being. I only watched it once and it felt overlong then (think it was close to forty minutes) and I just wasn't that into it at all. (Thankfully, someone has uploaded the entire match on both Youtube and Daily Motion, so I'll probably check it out again later today.) I do agree that it was a nice ending to show Undertaker needing to be helped out while Triple H was still standing and able to walk out on his own two feet without any assistance. It also provided a logical reason for them to face off again at Wrestlemania 28.
Speaking of which, I love the iconic image of Undertaker, Triple H and Shawn Michaels all three walking out together with their arms draped around each other at WM28. Even though it wasn't planned this way from the start, it felt like closure to a three-year storyline spanning across four Wrestlemanias, beginning with WM25 and culminating at WM28.