Pretty dumb to sign an exclusivity agreement, especially with the rumors of Apple Pay for so long and Google Wallet beginning to take off. It's like the guys who make the decisions at these companies really have no idea what their customers want: security, privacy and speedy transactions.
Google Wallet was around since 2011ish though and never really took off. They also thought that chip and signature was never going to happen in the US so the decision probably made a little bit of sense at the time--if CurrentC took off they would have had valuable customer data to mine and reduced their card fees. Of course, MCX managed the project totally badly; their plan would have had a chance only if nothing easier took off before its release.