Careful...
Giving references is good, but if the references ignore Lunar-based methods, then they, at best, cast no light on the issue. Guessing WHY they don't address Lunar systems is a haphazard method of scientific analysis. It would be better if there were a reference document that DID discuss lunar options and showed rough cost vs efficiency.
Of course, you could work up the argument yourself, given the basic data:-
Cost of the return-to-the-Moon initiative, assumption that it will include NEO detection, and that it will be as effective as any cis-lunar system, then plot it on the same chart.
I'm not arguing that you're wrong, btw, just that you haven't formally proven your case (yet).