Gerald O’Connell (probably accurate even though at Amerika) says the Pope responded to an intervention from the floor by Card. Pell which criticized the membership of the Special Commission which will write the Final Report of the Synod. HERE (Pope to Synod Fathers: Don’t Give in to the Conspiracy Theory).
For every member who will reliably defend traditional Church teaching, there are more who lean toward the “Kasperite” position (Kasper, Marx, et al.). On your own, check out the composition members