I don't see it as so dangerous to the faith if people really only believed in the baptism of desire of the catechumen of St. Thomas Aquinas (STA), however, no one today does restrict it to STA's BOD. In my experience, even those that say they restrict it to STA's BOD, do not really, for you never see them strongly opposing implicit faith'ers as they do with there incesant adamant fight against strict EENSers. In my experience that is because they really do not restrict their belief to STA's BOD, because if they really believed STA's BOD like say St. Alphonsus Ligouri, they would oppose the teaching, like St. Alphonsus Ligouri did.
Here is St. Alphonsus Ligouri in his own words teaching against what everyone today believes, that BOD saves Jews, Mohamedans, all non-Catholics, even the invisible ignorant. I don't see ONE so-called defender of STA's BOD teaching this way, not a ONE!
ST. ALPHONSUS LIGOURI REJECTED IMPLICIT FAITH
St. Alphonsus, quoted in Fr. Michael Muller’s The Catholic Dogma: “‘Some theologians hold that the belief of the two other articles - the Incarnation of the Son of God, and the Trinity of Persons - is strictly commanded but not necessary, as a means without which salvation is impossible; so that a person inculpably ignorant of them may be saved. But according to the more common and truer opinion, the explicit belief of these articles is necessary as a means without which no adult can be saved.’ (First Command. No. 8.).”
St. Alphonsus: “See also the special love which God has shown you in bringing you into life in a Christian country, and in the bosom of the Catholic or true Church. How many are born among the pagans, among the Jews, among the Mohometans and heretics, and all are lost.” (Sermons of St. Alphonsus Liguori, Tan Books, 1982, p. 219)
St. Alphonsus: “If you are ignorant of the truths of the faith, you are obliged to learn them. Every Christian is bound to learn the Creed, the Our Father, and the Hail Mary under pain of mortal sin. Many have no idea of the Most Holy Trinity, the Incarnation, mortal sin, Judgment, Paradise, Hell, or Eternity; and this deplorable ignorance damns them.” (Michael Malone, The Apostolic Digest, p. 159.)