Any user with at least 10,000 reputation (or devs/moderators) can read the deleted post.
If you have edited your post such that you feel it no longer deserves deletion you can flag the post, use the "other" reason, explain that you feel it deserves to be undeleted as a result of your changes, and it will be evaluated by a mod.
Currently your post would most likely not be undeleted if you flagged it. Even with your edits it's still just a comment, not an answer. The fact that you don't have enough reputation to post a comment doesn't mean you should post it as an answer, it means you should wait until you do have enough reputation to comment.
If you would like to discuss why some moderation action was taken, such as why a post was deleted, why a question was closed, etc. you should post a question here on meta, you should avoid such discussions in comments/edits of posts themselves as it is offtopic there and distracts from answering the question.