There before the grace of God go I is what St. Paul said, yet he also wrote to expel evil doers from among you in 1 Corinthians 5. We are to judge those in the Church before we even think about judging those in the world. As I've said before, wherever sin and immorality are rampant, heresy is lying underneath.
If these two or anyone else for that matter have indeed committed this sin then they need to be disciplined and shamed, and not have people going about things like everything is just fine. There will be no Social Reign of Christ the King if we do not apply it in our own chapels first. We are not Erastian after all.
Condemning immorality on paper is nice, but it means next nothing if its not actually applied, and to be honest it does not matter how Traditionally Catholic you say you are or your local Trad chapel says there are on paper, if you and they are de facto liberal and marxist. Trads used to point this all the time when it came to Neo-Catholics, their NO Bishops and their opposition to gαy marriage, abortion, etc because these things effect the very nature of the Church.
To further explain what I'm saying, the idea that the Holy Ghost protects that Church's teachings on paper or on a magisterial docuмent and yet fails to implement and execute them on the micro-level is not only offensive to faith and reason but more importantly turns the Church's unity and visibility into meaningless terms, and makes the four primary marks of the Church mere legal fictions. This is one of the reasons why the Conciliar Church cannot be part of the True Church.