I wouldn't worry too much about folks getting caught up in context, as long as it's reasonably clear from the start of vid that you're not counting on context to make sense of things. I mean, you'll probably get one or two people with things like that (mostly folks who are very context sensitive), but most folks it won't be an issue. The real problem is when vidders switch how much context they're using. Unlike literalism where you can pretty easily go from more to less literal (in serious vids) or less to more literal (in comedy) it's very hard to switch the depth of context required, I suspect because it takes longer to process.