The option is for silence or a community-sung hymn, not silence or listening to a rendition by the choir or a soloist.
That (choir only) is exactly what has happened in my parish for decades.
When I first joined the Catholic church in the '80s, after communion there’d usually be a traditional eucharistic hymn (particularly
Soul of My Saviour) sung by the congregation. As often as not it was
a capella, so with or without musicians there’d usually be at least one hymn during the service. I fell in love with it!
Over the years
Soul of my Saviour seemed to fell out of favour in suburban parishes, and music became dominated by choirs and their own choice of music, which was typically post 1970s. I once asked a choir leader if we could have a eucharistic hymn at communion time, and she just giggled “Like Soul of My Saviour?”.
My current parish has been like that for more than twenty years, with the communion hymn being an “arty” (albeit reverential and contemplative) performance by the choir.
I’ve been in the choir myself now for eight years, and a few years ago became aware, through CAF, of the principle that the communion hymn is to have a eucharistic and/or community theme, and is to be sung by the congregation.
Along the way, I also learned that our choir leader strongly prefers communion time as a “choir moment” and also strongly believes that this is best practice, liturgically.
A priest asked the choir leader to please stop the choir “performance” at communion and have a congregational hymn, and she demurred. Not resolutely, but enough to push him to have to overrule her if he really wanted it, which he declined to do. I’m quite sure he knows either the GIRM or the general pincipal, but he thought it best not to impose it.
I’ve also learned from being in the choir what a sacrifice it is for all members, especially the leader and organist, that everyone is doing their best for the parish, and that our parish is fortunate to have the music it does - many are worse off.
That’s how parish politics works. Even a clear mandate such as GIRM 88 has to take a second place to “what works”. But for myself, being aware of it now (GIRM 88), if there ever comes a time when I can influence the selection of communion hymn, I know what the Church expects.
Thanks for the citation!