I think there should be a handoff procedure, or whatever you want to call it.

As EOL approaches, work with whatever open router OS maker is available (currently OpenWRT) to make sure it’s supported, and configs migrate over nicely. Then drop one last update, designed to do a full OS replacement.

Boom, handoff complete.

Sadly not surprising. You gotta spin it in terms they prefer, like productivity, profits, and ROI. Otherwise they assume it’s an expense with no gains.

This raises a more interesting question. How many copies of DOOM have been sold in the Vatican?