IMHO, Abortion should have been addressed in the prayers of the faithful at EVERY mass (with the exception of weddings, funerals or similar masses) in the country since Roe v. Wade legalized infanticide.
The reason it didn’t happen: About thirty years ago, 90% of the U.S. bishops grew up in a household in which the father was a member of a union—i.e., hardcore New Deal Democrats. Even today, many priests and bishops will not lift a finger against abortion because they don’t want to do anything that might help a Republican get a vote.