"When the need of the Church warrants it and ministers are lacking, lay persons, even if they are not lectors or acolytes, can also supply certain of their duties, namely, to exercise the ministry of the word, to preside offer liturgical prayers, to confer baptism, and to distribute Holy Communion, according to the prescripts of the law." Canon 230

EMHCs are only supposed to be used "when the need of the Church warrant and ministers are lacking". They aren't supposed to be used to give lay people something to do.