In and of itself monetising a channel isn't sinful - unless you're lusting/mastered by money. If it's not fame you're after, getting paid for work you're doing - I don't see anything wrong with it.
I've seen it twice and am seeing it again tomorrow when we take 30 youth to see it.
Here are the only things I can say that are spoiler free - it is a movie, and I friggin loved it.