A) The relevant portions of the rules only apply to the 5 ghz band. 2.4 ghz doesn't have that set of rules.
B) The document is not hard and fast rules, it's a set of guidelines to ensure that the device cannot operate out of the rules. So, putting the radio controls in a separate unflashable baseband chip would be ensuring that the radio is only operated by authorized software, while the rest of the router is operated by other software.
B) The document is not hard and fast rules, it's a set of guidelines to ensure that the device cannot operate out of the rules. So, putting the radio controls in a separate unflashable baseband chip would be ensuring that the radio is only operated by authorized software, while the rest of the router is operated by other software.