I agree that in some departments, canopy cabs will be around for years to come. But if an educated, articulate fire chief can successfully make the argument that replacing his canopy cab fire engine with a new fire engine will provide secondary and tertiary benefits (enclosed cabs with higher strength, ABS, ESC, airbags, climate control, etc), then he and his members will benefit from his justifications.
Am I disagreeing with you that a custom cab pumper with a fully enclosed cab is safer than a canopy cab? Absolutely not. But the world isn't Candy Land and all the best wishes in the world will not make the canopy cab pumpers in service today go away for probably at least another 20 years or so.