I am getting the impression that the term ‘scandal’ is being misunderstood here in the secular meaning of the word, rather than the Catholic terminology which is of a particular sin, that is causing another’s spiritual ruin or sin, because of your own act, or omission of an act.
Scandal as public embarrassment is not what the term means in Catholic thought. That can be a side effect, certainly, but it’s not what it means.
Whether the authors meant it properly, or even understood its proper meaning and simply ran with it improperly or not I do not know. I wouldn’t be surprised if they did not know what they were talking about.
Thinking of the sin of scandal, that is leading others into sin directly, by your bad example either through omission or commission of an act, I find it hard to think of any occasion where not receiving Communion could cause it, or cause it in such a way that rose to the level of having to make a perfect act of contrition and go.
It would certainly be a blue moon occasion if at all, a real unusual combination of circumstances.
Perhaps if the man was at his wedding mass, and on his way to receive Communion with the bride. He commits a mortal sin in thought. Then, rather than toss the entire wedding to Hell, he makes a perfect act of contrition rather than cause great upset. He would have to be certain the act was perfect, then he could go onwards to receive.
That might be a proper occasion.
The politician example, I don’t consider quite on target, as it would not be scandal in the sense of leading others into sin, just causing a commotion which is no one else’s business. I suppose if it were some gigantic event that could have national consequences… But it would have to involve sin, not natural evil… And be other than another senator using the mass for a photo op and public relations…
In the wedding example, if it could destroy a marriage if you have a sufficiently loose hinged potential bride and family… directly lead to a sin in that regard, not just the natural evil, there is that.