Why didn't you go down the route of Paxos Commit for your ACP versus the Yabandeh-style ACP? I realize that they have very different semantics, but Paxos Commit

Why didn't you go down the route of Paxos Commit for your ACP versus the Yabandeh-style ACP? I realize that they have very different semantics, but Paxos Commit seems to have (nearly) all the same properties, and benefits without a single key, that basically acts as the "coordinator" for the transaction (a process as opposed to a key).