This quote, in isolation, does seem like a semantical argument--and a weak one, at that. The misimpression grows stronger if one quits reading after the first couple of lines (as, quite frankly, I did the first time through).
But here's the difference between the oft-maligned "True Believing Mormon" (TBM) and self-proclaimed "heterodox" Mormons. The heterodox Mormon will tend to lash out at the leadership. Obviously
Faust was defensively responding to one particular critic. Of course
Faust was deploying a rhetorical a bait-and-switch. He's one of The Patriarchy™--how could he do otherwise?
The TBM thinks "huh, that's odd. I wonder if that's what he really meant?" Rather than immediately assume the worst, the TBM Googles the quote and finds that it comes from a 1985 Ensign article called "The Abundant Life
". The TBM--even a lazy one like me--skims the article, returns to the quote, and then understands the quote's main point: that when you're truly converted you do stuff because you want
to, not because you're "supposed" to.
The TBM may find a turn of phrase within one specific sentence of the quote mildly regrettable, but on the whole walks away edified.
The heterodox Mormon dubs the whole thing "absolute rubbish", picks a fight with a couple of other TBMs who disagree with his assessment, and then (one presumes) congratulates himself on his thoughtful and nuanced approach to religion.