Xfinity process for updating in cell coverage

For the last week or so, it appeared that cell coverage at my home address and nearby had deteriorated substantially on two phones, to the point that calls could not be made without Wifi calling. I spent probably an hour and a half debugging the issue and concluded that there must have been a change in cell coverage patterns. Went to the Xfinity App Customer Support Assistant and when I searched for something like "mobile coverage", I see a notice concerning an upgrade in the Xfinity Mobile Network, which may cause a service disruption, and recommending restarting the phone to restore service. Great! Seems to have addressed my service issue. But, please..... a text message or email notification that this network change was happening, that it may cause a service disruption, and a phone reboot was the corrective action.....WOULD HAVE BEEN GREATLY APPRECIATED! Let's think a few steps ahead next time this potential customer-impacting event is planned. Thank you.