"This change may prevent new downloads of the Spectrum TV app to your Roku device, but you can still access your full video library by downloading the Spectrum TV app to your Apple TV, Samsung Smart TV, Xbox, smartphone or tablet."
This where having multiple alternate streaming platforms is handy.
StreamerUser Roku Community Streaming Expert
Help others find this answer and click "Accept as Solution." If you appreciate my answer, maybe give me a Kudo.