I think you're missing the point.
Jesus gave specific commands.
Nathan is telling us that Jesus' specific commands are not that important.
The scriptures state exactly what Baptism is about. (Ro 6:2-3)
Nathan is peddling his own ideas.
That seems to me to be a conflict or perhaps I don't understand what is meant by:
Do not promote a religion or belief other than Biblical and historical Christianity. (ToS 2.2)"
Or perhaps you also think that doing as Christ commanded and what the historical church has taught for 2000 years is to "strain at a gnat, and swallow a camel."
Or maybe I'm just taking Jesus exact words too seriously?
iakov the fool