well FWIW, i too consulted Dr C, and he did NOT push IMDO for me, actually pushed in the exact opposite route saying he wouldn't do it on me. I am also aus citizen and was local at the time, so I dont think its an insurance consideration.
So if he's "pushing" it for you, its probably because he sincerely thinks its the best option in your case.
EDIT: did he give any indication of why IMDO would be better for you than traditional techniques?