I find that passage a little odd - that using S-04 with lactose could be problematic. Northern Brewer defaults to using S-04 with their chocolate stout which comes with lactose. I'm brewing that recipe with that yeast today.
As I say, it's just a risk based on what we know of that particular yeast's biochemistry. Maybe it's fine, maybe the big multinational just hasn't thought it through properly and doesn't really care.....
I'd be a bit cautious letting S-04 near lactose, given that we know its lactate metabolism is kinda unusual. That doesn't mean it will be terrible, but you could be giving it exactly what it needs to pump out lots of lactic acid, and it doesn't usually need much inviting to do that even with normal grists.
I took another gravity reading about 5 days after having racked the 1.030 beer onto the bourbon soaked woodchips. I used about 1/2 a pint of Maker's Mark. When I took the reading it was 1.022. Is that because of the booze? Or did the fermentation somehow take off again? I'm going to let this beer sit 'till about mid-December before bottling.