I don't think it would, unless it begins playing within thirty seconds of the user choosing a video and provides an uninterrupted streaming experience?

Last I checked, the BitTorrent protocol didn't provide packet sorting that would allow for this behavior (by forcing the beginning of the movie's bytestream to be the first data downloaded), so my mistake if the protocol has improved and I was unaware it provided this service.

The downloading client is in charge of which parts of the file it gets first. It can easily go in order.

How easily, and how much setup is necessary? Remember, we're talking about competing with a service that doesn't even make the end-user consider whether that is a problem that needs to be solved (just plug in a credit card and off you go).

A coder spent an hour changing the code, once, and now it requires zero effort for users. They never know the difference. Open popcorn time and wait for it to quickly buffer.