Yes - but my guess is that MyrnaM doesn't make that distinction.
You, however, Ambrose understand what untrained means and ignore the Church's teaching on the matter.
You may guess that, but she did not say that. You could have easily asked her.
I do not ignore Church teaching as you state. The training of priests is not a teaching, it is a discipline. A discipline binds so long as the law does not harm.
In our present situation, the only priests left on earth with approved training and a mission from the Church are all elderly, and very few of them are "traditional priests."
Canon 2261 and the commentaries on the canon mentions nothing about not approaching a priest with unapproved training such as SSPX and CMRI, and others. If these priests and those who ordain them incur censures for their acts, it does not flow to the laity, who are specifically allowed by Canon Law to approach such priests for the sacraments.
According to the Code, the laity have the right to request the sacraments from priests under censure, so even if these priests were under censure, (another debatable point), Catholics have the right to approach them and request the sacraments from them.