For me, Taker's streak was just one of the 'untouchable' things. It lasted so long and it just feels now like it was all for nothing. I would have liked to see Taker bow out with a perfect record.
I get why they chose Brock, but, it just seems a bit lame that it was a part timer, instead of someone who slaves their butt off all year. Some people on facebook were saying that any other superstar would have been bad because they would be hated to death by everyone and that Brock can just leave, but, no matter where he goes, serious wrestling fans are going to shit all over him. He will never escape it.
Taker is a real old school guy, he most likely chose Brock to end the streak himself, assuming the match ending was not a botch because of Taker's concussion.