“I believe MFA commits a deathly sin against the commandment “Thou shall code against interfaces, not implementations.’” I don’t disagree with the sentiment, b

“I believe MFA commits a deathly sin against the commandment “Thou shall code against interfaces, not implementations.’” I don’t disagree with the sentiment, but I’ve certainly never heard of this commandment - at least, not until the author conveniently declared it one to make the point.