Right sorry. Perhaps it would be better saying that I doubt uTorrent will be as strict with packet loss while using this new method. Sure, they're going to keep tabs on it. But unless they're as harsh on less than perfect connections as the Jacobson Algorithm calls for with TCP connections, the torrents will start to take over.

we have an opportunity to detect end-to-end congestion and implement a protocol that can detect problems very quickly and throttle back accordingly so that BitTorrent doesn't slow down the internet connection
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The major problem I see is that UDP doesn't play as nicely as TCP. Not by a longshot.

As soon as TCP notices a single packet loss, the Jacobson Algorithm kicks in and it's throttled to maybe 50-60%, and raises the limit slowly. I highly doubt that uTorrent's reworked version of UDP will play this nicely.

As soon as TCP's throttling kicks in, space will be cleared in the tubes. uTorrent will be able to send more data through UDP without noticing any loss, so it'll quickly move to fill this space. Then, TCP gets hit with more data loss - and goes slower. It seems like a vicious cycle.