So, why do you like them [the agnostic sort of religious mystic]? Do you 'like' theists too? Where do you draw the line?
Well, these theistic agnostics are theists, so in a sense there isn't any line.
Why do I like them?
Believing that God is ultimately unknowable in a cognitive, propositional sense, they typically make fewer claims about God than other theists do.
That involves them in fewer epistemological difficulties.
They are less likely to set themselves up as God's earthly mouthpiece, proclaiming the minute details of what God supposedly thinks and commands.
They are less likely to proselytize.
Their emphasis on personal experience means that they often recognize that everyone needs to experience things for themselves and hance has their own path to follow.
They are far less apt to anthropomorphize God, to imagine God as if God was a human personality blown up really large.
Hence their non-conceptual concept of God (so to speak) seems to me to be more likely to be true and accurate when it's applied to the transcendent dimension of life and to whatever it is that may or may not ultimately account for the universe and Being itself. Whatever lies out there (if anything does) is probably something very unlike us and unlike anything we've ever imagined.
They acknowledge and speak to the emotional and spiritual side of life in ways that others don't.
They help show us a hermeneutical way to 'read' the world's various religious traditions in such a way as to preserve what's good in them, their art, their beauty and their wisdom, without throwing it all away in a fit of atheistic anger.
They show a way that the worlds religions, so different and so inconsistent on the doctrinal level, can be reconciled at a higher experiential level that transcends words.
There's less chance of them getting into any turf-battles with science.
They teach and practice contemplative and meditative disciplines that I think can be very valuable.
Perhaps as a result of that, their inner peace and calm, their depth and emotional resonance, and their ethical behavior sometimes impress me.