>>But we don’t want to repeat the mistakes that were made around the time of VCII, and rush in a bunch of unfamiliar stuff on people.<<
It depends on what finds “unfamiliar”.
To some, “The King of Glory” is familiar.
What we need to do is correct. There is a change to the GIRM coming and it’s coming quickly. We need to teach the reason and the reason is that it is correct. The innovations that went on in our parishes were wrong.
I think it’s wonderful that you have a Holy Mass without music for those who do not want it. That’s how it should be. If one wants the choir, it’s there. If one wants the silence, it’s there. The pity comes when one finds no reverence in a Catholic parish. We travel a lot and find more innovations than reverence. Where the organ sits silent as the choir and piano play. That’s great for the Non-Catholics who need praise and community for their services. We have The Body and Blood, Soul and Divinity of Our Lord Jesus Christ right there. Everything else is secondary.
But I have to disagree with you that music is somehow not proper in the presence of Our Lord. You set up a false dichotomy, that on the one hand one has "real Catholics" who don't need anything but the Real Presence, and on the other hand "Non Catholics" who need their "praise and community". That is wrong, and insulting to the generations of Catholics for whom properly presented, reverent, appropriate music is the best offering they can bring to Our Lord.
Do try to live and let live. Some 'real Catholics' consider good music an important part of the Mass. 'Real Catholics' like Mr. Palestrina, Mr. Byrd, Mr. Victoria, etc. etc.