You're quite right about the non-parenthetical, I failed to re-read what I wrote in an editing pass. It should of course be "with" instead of "without", or alternatively change the "greater" to "lesser". I am grateful for the correction.

As to your parenthetical, cuspiness is not really relevant to the scale of the points raised in the bulk of my comment, and it is not clear to me why you raise the DM density profile here.