Because Metadata collection is still ongoing. The data just stays in a collected pool managed by the Telecoms. There's just more red tape, which basically eliminates the entire purpose of the program: speedy and easy access to metadata during an emergency.
"Under the previous framework, I, as the head of the NSA, was delegated the authority and the responsibility in emergency situations to authorize access to the data. I then had to go to the [FISA] court and to the attorney general and put into writing why I did it, what I did, and what the basis for that decision was," Rogers answered. "Now as we transition to the new law, which we have to have firmly in place by November the 29th, I have lost that authority. It has now been raised to the attorney general and I will have to approach the attorney general for why she needs to authorize emergency access."
...
"The Obama administration pushed hard for the end of metadata collection, so Rogers’s testimony marks a rare moment of discord with the president."
http://www.govexec.com/defense/2015/09/nsa-head-loss-access-metadata-will-hurt-intelligence/122069/
No, I’m talking about the technology that Mike Lee brought up back in June that enables NSA to collect the data they need in real time under the USA Freedom Act. Mike Lee was one of the strongest supporters of the USA Freedom Act.. The head of all the National Security Agencies, Paul Clapper, is happy with the USA Freedom Act, so I don’t know what the beef is.