CathInfo.com

Here is Novus Ordo Watch's take:

https://novusordowatch.org/2018/12/robert-barron-ben-shapiro-no-need-to-become-catholic/

Note in particular point no. 2: You must profess the True Faith. Pius XII does not say you need only to believe it, regardless of what you profess. This distinction, again, is crucial because it directly impacts the visibility of the Church: While it is possible, through invincible ignorance, to mistakenly assent to a heresy and yet retain the virtue of Faith, if you outwardly profess your adherence to this heresy, you cease to be a member of the Church. (This contradicts Francis’ other error, this time an error of excess contrary to his error of defect being exposed here, according to which all the baptized are members of the Church, regardless of what Faith they profess. This too is heresy.)

For this reason, the Catholic Church cannot regard individual members of heretical sects as Catholics even if they are not culpable with regard to their heresies and perhaps even possess the virtue of Faith. (The rejection of this all-important consideration is one of the fundamental errors of the False Ecclesiology of Vatican II, which grants “partial communion” to heretics on account of a valid baptism. Please also listen to our podcast on this question.)

Jesus died to save us from our sins but He didn't die and make you psychic reader to be able to see into the secret of men's hearts. we can conjecture and we might be right, but we could also be wrong. Only God can see into the interior secret of men's hearts.

10. In particular, ensure that the faithful are deeply and thoroughly convinced of the truth of the doctrine that the Catholic faith is necessary for attaining salvation.[4] The Catholic laity and clergy should repeatedly offer special thanks to God in public prayers for the priceless gift of the Catholic religion. They should also beseech God to protect the profession of this faith in our country and to keep it unharmed.