Doesn't the use of these "data rings" by the low voltage crowd destroy the rating of that firewall?
Heck ya, it does!!!
Typical installations in my area (Southern California), for _ANY OUTLETS_ in rated walls / lids, is as follows:\
[*] The outlet would be (compatible to) a 4s box, with a 1 (or 2) Gang Ring mounted to it,
[*] The 4s Box would be covered with a "Fire Pad",
[*] The Low Voltage Cabling would enter the box via 3/4" EMT, which extends "Outside" of the rated wall / area.