Yes, WWE needs to desperately find a new way to sell Wrestlemania and build mega matches like we were always used to before the Streak became a focal point or the Undertaker was featured in the main events each year.
Maybe it gets hyped, but it does represent something, WWE's faith in The Undertaker as a performer, and in later years a sign of appreciation for the hard work he put in and the many, many injuries he received for the purposes of entertainment.
overrated for sure.
for me it was just boring because there was no suspense of whether Undertaker would win or lose. (from Wrestlemania 21, I never even bothered to think that anyone will be able to beat Undertaker)