Catch,

that works in a multiple door system, not in a redundancy system


Incoming
|
Firewall 1 Firewall 2 Firewall 3
\ | /
\ | /
Server

then yes, assurances go down



Incoming
|
firewall 1
|
Firewall 2
|
Firewall 3

this provides redundancy. a hole in firewall 1 that was blocked at firewall 2 would not lower assurances...


unless we are talking about software firewalls as opposed to two different hardware firewall appliances...


(edit - sorry about the incompleteness the first time i posted this. i hit send too early)