Personally I find it to be exceedingly annoying. If done within the context of the Low Mass it is maddening. If done at the High Mass it is excruciating, and virtually eliminates the possibility of well-chanted or polyphonic Mass.
Well, your reply is certainly reassuring. For me, anything that introduces a distraction for me is a negative. I face near occasions of SIN everywhere outside the walls of the Church on a daily basis. Why would I want to face more near occasions of SIN inside the Church?
Perhaps the choir isn't sounding its best that day, well, sometimes I chime in if it isn't distracting for others around me, or certainly for the closing or recessional, the congregation is welcome to join in. I can deal with the choir okay. But when it comes to the responses, having isolated voices chirp in, often at the wrong time, or saying the wrong words, it takes my mind off of the Mass, and I want to leave. That's not a good thing.
As for Pope Pius XII allowing dialogue Mass, it seems to me
that adds to the list of things he did that were NOT okay. Probably the worst thing was putting Anibale Bugnini into a position of authority to change the liturgy. Another was the revision of the Psalter -- unnecessary! And, by the way, that was UNDONE later by John XXIII.
There were several things Pius XII did that were BAD and several things John XXIII did that were GOOD. Too bad they don't all come out for the overall betterment of the Church!