No, invincible ignorance implies that the person “does not deserve” to be ignorant and they are “sincerely good-willed.”
The quotes you posted by St Thomas explain that those who are ignorant of the Faith, are so because of sin. Therefore they aren’t “invincibly” ignorant (ie unable to be overcome) because if they followed the natural law, and their conscience, then God would give them Truth. Thus, sinners who are ignorant are in culpable ignorance. It’s their own fault.
Implicit faith is just another heretical way to say that God would create people, not give them Truth, and let them into heaven, without testing them. Which is a mockery of the Church and of all the saints/martyrs who “fought the good fight”.