Corus Entertainement lost the distribution rights to Rogers (highest bidder to carry the content) which now own the rights to broadcast those channels in Canada. It's not a Telus Decision. All carriers dropped the channels, unless you have Rogers for TV service you won't get any of the channels CORUS lost the rights too. Food Network, HGTV, Discovery, Discovery ID, Bravo etc. Whether or not Rogers will allow carriers to pickup those channels again is up to them (as carriers will have to negotiate a deal with them if they ever allow it.
You will see many rebrands under the Corus banner picking up a majority of the programming offered on the networks lost. Magnolia content can still be viewed with a Discovery + subscription.
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