I don't know why you're complaining about the dificulty. From my point of view 16man is great, it offers a real challange, while 8 man Guilds still got no new content at all.
So keep this up i like it.
If 16 man would have been as easy as 8 man is the hole patch would have been worthless. And my guild had once again no new challange ahead.
So 16 man stays the pinnacle of raiding in swtor. Every raider who wants a real challange has to go the 16man path.