Mass intentions must be "announced" in some way. Usually they are published in the parish bulletin. Many priests do no more than that because of bad past experiences because of announcing the wrong intention or misprouncing the name and being verbally acosted by the irate donors. The rule of thumb I learned for vocal inclusion of names in the Eucharistic Prayer is that this only takes place in the cases of ritual or requiem Mass and not at Sunday or Daily Masses.

In terms of dispensation Canon 89 allows for dispensation for universal laws by clergy IF the faculty has been granted to them either in the Code or by the proper authority. No mention is made in the Code of the possibility of granting a dispensation from the Eucharistic Fast. It may be that the priest's personal faculties from the Bishop permit this.