If downloading pieces in random order is most efficient, doesn't streaming negatively affect the torrent ecosystem?

If everyone streamed every file at the same time, the ecosystem would be negatively affected. That’s why we’ve put in safeguards to protect the ecosystem such as disallowing streaming when there aren’t enough seeders for a file, and preventing users from streaming more than a single file at a time. With these protections, we’ve tested and found no negative effect on the ecosystem. This is a property we’ll continue to monitor and adjust for as streaming becomes more widely used.