They do that on YouTube too. Viral videos are key to YouTube's popularity and success so removing those sharing options would piss off a lot of people and unnecessarily hurt the product.

I've been doing android only work for the last few years, does iOS still not have an equivalent to andriod.intent.action.SEND?

The Facebook share option is not working for me.

Is this something extraordinary?

I think the sharing options were more limited w/ the previous app. (Mail, msg, twitter, ?)