As the article and the part that I quoted say, the exit polls are adjusted to better represent the complete audience, while RT scores and Youtube upvotes come from a very specific group of mostly young males, so they are not representative of the whole audience.
Do you have stats to back that up? (mostly young males?). It seems funny that people are claiming TLJ is riddled with a feminism agenda driven by Kathleen Kennedy and now RT and YouTube scores are mostly from young males?