There are a few things you need to ask yourself before submitting dominion posts as development.
Firstly: is what you are submitting directly related to the posts? Namedropping your submission once and then going about your business as though it doesn't exist does not help.
Secondly: could the posts reasonably be considered dev? If you're submitting a sword, but the dominion is a garden party and you mention it being at your side the whole time, that's not development.
Thirdly: have you collected links to the relevant posts and included them in the submission? Dominions, skirmishes, and invasions involve a lot of posts, and the judge probably doesn't feel like sorting through the lot of them. Chances are they'll ask you to point out the ones that matter anyway.
Hope this helps.