Well, yeah, to a degree. But then, it probably provides a better user experience most of the time, and especially on mobile networks, so that might be enough to gain adoption.
True, I do hope that mobile roaming (and switching between WiFi and mobile) would be the killer app for QUIC. But AFAIK many ISPs treat mobile network differently from home broadband.
For example, my mobile plan and fiber broadband are from the same ISP, yet they appear to be running on two different backbones. The mobile network rarely experience traffic shaping, even at peak hours. My guess is that because mobile generates higher revenue, it gets better infrastructure. The fiber broadband is likely run at loss, it would be de-prioritized.
If that's the case, it would be difficult for QUIC to get traction on desktops.
