if the Rite of Acceptance was done with all the bells and whistles, the candidates are greeted at the entrance of church, there is an opening ritual there which replaces the greeting and penitential rite, there is a procession as the candidates and priest come to the place where the rest of the rite will take place, usually in front of the altar. Since the various prayers and blessings take the place of the usual opening rites, those are not done. The reason your Mass was “interupted” by this event was because you, as one of the community, are supposed to be welcoming these people into the assembly, and if you listened to the part where you were called to stand and say Amen to the priest’s prayer on your behalf, and affirm by saying Yes your intent to support and welcome and guide them during their yourney, you would realize that you had an active part in this ceremony.
The Liturgy of the Word is integral to every RCIA rite and should not have been curtailed, although the homily may have been shorter, and by rights should have linked the story of blind Bartimeus to the conversion experience the new catechumens are taking part in. The Sundays with readings like this one that are so pertinent to RCIA are often chosen for the Rof A for this reason. the homily could also have made the point, as our priest did, that Bartimeus had to keep shouting down the crowd who was preventing him from disturbing their view of Jesus by his clamor, and he had to shout to make himself heard above their indifference.
The Creed should definitely not have been omitted, and the prayer of the Faithful should have included some petitions for the catechumens, or it could used the actual petitions and intentions included in the Rite, in which case that would have replaced the Prayer of the Faithful.
too bad your priest did not do a better job explaining what is happening, are you sure there was not a long article in last week’s bulletin (like we had) explaining what would be going on, perhaps listing the names of the candidates?