Wondering then if maybe not directly available in Canada?
Might want to reach back out to Xfinity and see if actually available when using a Canadien device in Canada.
Since the Xfinity Stream app is not showing in either the US or Canadien online Roku Channel Stores, I can't tell if this is a glitch. (especially when it showed up only from a US-based device search).
Are you using Rogers Xfinity? I am assuming you are in Canada.
I can find Xfinity in the US store, but not in the Canadian store. But I looked on Rogers' website and could also find no mention of Roku. (Searching for Roku on their site returns links about watches.)
Here's a page about their streaming TV that lists Android, iOS, Fire TV, and computer browsers. So, I don't think they support Roku at this time.
https://www.rogers.com/support/tv-streaming/shaw/how-to-use-the-rogers-xfinity-stream-app
