I haven't seen Fantasmic recently, so I am not sure about that one, but I do have pics of the second WOC from Sunday, September 23rd. The WOC viewing area had almost no people in it. We showed up 10 minutes before it began and got an awesome spot.
This was the Blue area (but CMs weren't even collecting WOC FPs, so anyone could come in this area). We were up front at a railing.
As you can see, there is plenty of room!
I am not saying that every showing is like this now, but if you can do a second showing (as opposed to a day that has a single showing), I would do that. I was sort of expecting this because the second show FPs weren't even available that day until well past 5pm. We asked the CM when we walked by the WOC machines what show they were distributing and understood that meant the second show would be slow.
I have seen WOC about 8 times now, all in different areas and on different kinds of days. In my opinion, it is best to see WOC during the latest show possible and on a day with multiple shows. On days with only one WOC show, it tends to be pretty busy. Also good are days when the last WOC show is AFTER park closing. People don't plan on being at that show because in their mind, the park closes at 10pm, even though the WOC show might be at 10:15pm.
WOC doesn't have to be insane. I have seen it a few times now with little to no crowds, but you do have to stay up later and you do have to pay attention to how the WOC FPs are being distributed. But I find it is a small hassle for a big reward.