According to the Catholic Herald, Archbishop Tagle gives his Manila priests some liturgical advice:
With all due respect, my brother-priests, I do not see the need for saying “good morning” and similar greetings when God’s real presence in the Holy Eucharist alone suffices.
Is not the expression “The Lord be with you” more than enough?
I’m not sure about that piece about the real presence at the beginning of Mass. If Mass is being celebrated in a church, the tabernacle is an accident of architecture, not a requirement that it contain anything at all.
As for the gist of the urging, the archbishop is absolutely right. “Good morning” is a proper personal greeting as people enter the building for Mass. Ideally, clergy are not closeted away in the sacristy, preparing for the Big Reveal. They can be part of a welcoming presence outside the doors. On the front steps, in the narthex, or even in the street: that is the place for a genuine and personal greeting of parishioners and guests.