I have listened once, all the way through and prefer John McGlinn's recording both for its completeness and for Brent Barrett vs. Patrick Wilson. I slightly prefer Keli O'Hara to Rebecca Luker, although there is nothing wrong with Luker's performance. My fuller review appears on Amazon's page with more details why I prefer McGlinn. If McGlinn did not exist or a listener prefers a performance of the important songs, they may well prefer this new recording.
BTW, if you are right about Wilson and he lightens his voice for the recording, I would have liked him better if he did not.