[CCPDarkraiRules]

3. Why are the episodes censored? - During the simulcast, FUNimation and Crunchyroll only have access to the censored broadcast TV masters given to them by Japan. Contrary to popular belief, FUNimation and Crunchyroll DO NOT censor the show themselves; they can only use what the Japanese producers offer them in the meantime. They will eventually get the uncensored masters once it gets closer to the home video release, however, and around that time the streaming footage will be updated with the uncensored footage. Note that for free subscribers, ONLY the censored footage is available; you have to upgrade to a paid subscription in order to see the uncensored episodes.

4. I've heard that the channel AT-X in Japan already has access to the uncensored footage. Why couldn't FUNi get it from them? - AT-X is a premium cable network in Japan, similar to HBO or Showtime here in America, only even more expensive. As a result, AT-X has temporary exclusive rights to the uncensored masters for the time being. It wouldn't be fair for Japanese television subscribers to pay a high price per month for AT-X when we get the exact same footage they do, at the exact same time they do, for only $8 a month. So FUNimation's options are to either use the censored masters or to not do a simulcast at all.

Here's an answer from FUNimation.