it isn't cheap to splice a video. Even if they do it via some sort of chunking, then it's possible to skip chunks easily too (aka, relatively easy to bypass gi

it isn't cheap to splice a video. Even if they do it via some sort of chunking, then it's possible to skip chunks easily too (aka, relatively easy to bypass given the amount of effort to implement). Not to mention it's hard to do caching this way imho.