Criticism of what the Anglican Communion Office is doing comes from more than one direction.
On the one hand, Paul Bagshaw of the MCU has this detailed critique of Part 4 of the Anglican Covenant, Questions on the critical clause.
This is a follow-up to his earlier articles linked here.
On the other hand, the Anglican Communion Institute has this detailed criticism of the Anglican Communion Steering Committee. See ACC Standing Committee: Five Things That Should Be Done Now.