How many years has it been since we figured out that Chinese computing and internet software can spy on users and report back to Beijing? And Washington is just now banning imports, without having first found and vetted alternative sources?
Even the routers that aren't actually made in China may use Chinese silicon which could have its own backdoors. The way to fix this is to have other manufacturers lined up, ready to deploy with tested designs and audited supply chains. The time to do it was - at the very latest - five years ago.
Given that, it's still better late than never. But doing it without having alternate suppliers lined up, and with no plan for carefully staged infrastructure replacement, seems rather lame.