[Tramonto]

If he decided to surrender to his sins, that is certainly a reason to leave the Church. However, exchanging true doctrine for false will not win him forgiveness.

From the article, it doesn't sound like he decided to surrender. Struggling and surrender are sort of opposites.

After my baptism I struggled with temptations and trials, but the Lord was my constant refuge: ‘God is our refuge and strength, a very present help in trouble’(Psa. 46:1).

[mas cerveza por favor]

That was when he was still Catholic. It sounded like he left the Church because he was unhappy with the Catholic approach to sin.