It absolute is true....
Routers have minimal mass storage, probably less than 200 gigs storage which would be huge...I’ve worked on routers with far less....
Routers DO NOT have hard drives on them, they have something called a flash drive which at most contains 1-2 copies of the operating system and the configuration that is running on the router....outside of that pretty much nothing else...
Routers and can be configured to send information to a log server or servers and we have no idea if Maricopa County even uses that setup or how long log files are maintained....remember November is almost 6 months ago..
This router issue is a wild goose chase and distraction. Concentrate on the physical ballots, the machines that count the votes and who has access to them...
Agreed, routers / switches, etc. do not have mass storage for logs, at least in the globally connected Cisco environment I worked with. Those devices capture the header / footer information and pass it along for logging. The connectivity devices (switches, routers, interfaces, et al) “should” be configured to report to a network management system all of the pertinent information of each connection. Every one. I recently retired but part of my work involved reading those logs for troubleshooting purposes. I’ve seen them, I’ve read them, I know what they contain (not in their entirety, just what I had access to).