who's not attached to her personal identity [...] would be expected to be more reckless and indifferent

Quite to the contrary. Since "causal streams" become more clear, one can see e.g. the dangers one escaped in the past by sheer dumb luck. So, also the possible consequences of future actions become more clear. Enlightenment does not eradicate self-preservation instinct. If it does it's not enlightenment, it's insanity.

this indifference would include moral neutrality.

Naturally, but the macro level causality is inescapable. I.e. e.g. a cornered dog is bound to attack you whether you are enlightened or not. That's neither good nor evil, that's just the way things are.

enlightened spiritualist would [...] also believe that death is just the dispelling of a shadow.

What shadow? Death is the definitive dissolution of a particular form into another one. And just as a side note -- if a spiritualist has to believe, she's definitely not enlightened.