Which I guess makes it no surprise it's overlooked here.

That's the core of it, yet alarmingly easy to miss. It cuts both ways of course; some very strict denominations practically deny the possibility of repentance when church members sin, so people only have to screw up once to be permanently ostracized whatever they do subsequently. Yet on the other end of the spectrum are churches that seem to feel something as trivial as unrepentant sin shouldn't be a barrier to fellowship with God (which is totally the churchs call, right? ) My experience has been that both phenomena are most prevalent with BAC churches, where the Sinners Prayer, an alter call, dunking or whatever rite of passage they endorse somehow makes people immune to sin, and any subsequent sins are either treated as proof the young Christian was insincere or unclean, or dismissed because they can't have sinned; they're CHRISTIANS. Of course, this overlooks another scriptural point on which Paul is explicit in multiple places; had he the luxury of putting his life on autopilot once he accepted Christ he wouldn't have spoken of "finishing the race" or "perfection in Christ" as a process rather than an instantaneous event.

*returns from tangent*
The point is, if someone objects to a basic and enduring Church statement that a given act is sinful, but nonetheless commits it and means to continue, the solution is not conforming the Church to their wishes, but a religion (if any) that condones them. Just because a Christian desires something that the Church condemns doesn't mean the Holy Spirit is conveniently telling them the Church is wrong and their desire right; as you correctly note, that's the nature of a Christians struggle against sin, one the Church teaches is impossible for anyone to win apart from Christ. I realize there's a popular view that Christianity is "slavery to Christ", but within the Church I thought it well established that slavery to sin is NOT Christianity. It's one thing to err, repent, be forgiven in Grace and try to be righteous henceforth, and quite another to revel in error while calling it Gods will.