

They don’t care about quality, they care about cutting costs and keeping subscribers. That’s why they employ experts and why some even invent their own codecs and custom hardware to go with it.
Regardless, I’d bet anything that you are not able to reencode blurays to 15mbps without substantial quality loss.
Non-profits want to maximize their impact and spend efficiency. If they track how people use their services, they know better where to focus their efforts for improvements. If they know how people are finding their site, they know where to focus their marketing spend to help the most people per dollar spent. Marketing and user analytics are an important part of even altruistic goals.