Having found myself leaning toward Traditionalist tendencies, I find that one has to be careful to maintain balance on the matter. Unfortunately, the current situation in the Church today is very “unbalanced” because of general misunderstandings and a lack of total liberty on the celebration of the Tridentine mass. Currently, local bishops must approve the celebration of a Tridentine mass before a diocean priest has the right to celebrate one. Some bishops in the USA have outright forbiddon the Tridentine mass in their diocese, and this lends to the confusion and further promotes the unbalanced state of the Church today.
In such an unbalanced state of affairs, it’s very easy for Catholics to get unbalanced themselves when leaning toward traditional Catholicism. The unbalanced state of affairs tends to lead to an “us” verses “them” mentatity among some Traditionalists, and the same could be said for some Contemporary Catholics too. Nowhere is this more evident than in a diocese where the Tridentine is forbiddon and semi-schismatic organizations like the SSPX have moved in against the will of the local bishop.
Right now the indult to celebrate the Tridentine is limited, in the sense that the local bishop must approve. If that indult were expanded to override the local bishop’s permission, than that would change the whole face of the Church worldwide, and especially in places like the USA, Canada, and other English-speaking nations. Almost instantaneously, Tridentine parishes would pop up all over the landscape. Some parishes might mix celebrations, in which the Tridentine might be an earlier morning mass, while the Novus Ordo would be done afterward. Once this happens, semi-schismatic organizations like SSPX would begin to sputter out. The wind would be taken out of their sails entirely. As a result, this “us” verses “them” mentality would diminish as well too, and people like your friend would be less likely to be confused about the legitimacy of the Novus Ordo mass.
Make no mistake about it; in recent years I’ve become highly critical of the way in which the Novus Ordo is celebrated here in the USA. And I rejoice in the liturgical reforms that are coming down in the near future. However, in spite of all the Novus Ordo’s problems, it still is a legitimate rite, and in many ways an evolving extension of the old Tridentine rite.