Judge not, Shane Ross, that ye be not judged
In life, we often find situations in which an otherwise excellent career is overshadowed by one major transgression. In politics, Shane Ross is demonstrating it can work the other way round, with one excellent idea being overshadowed by the accumulated weight of all the transgressions.
And, in his case, the transgressions are perhaps coming from the same source as the one excellent idea - from his career in journalism, in which he excoriated many of the things politicians routinely do, and then discovered that, as a politician, he was doing roughly the same things routinely.
Therefore, he seems to be always either transgressing or about to transgress, in the light of all the fine things he used to say.