It's something you don't see here, but in
FC and
SFB one key aspect of cloak use is the tactical operating costs. Even for the Romulans, the main drawback of using Kestrels is that, since the hulls were not designed from the get-go to operate using cloaks, they have to spend more points of power per size class than either Eagles or Hawks. (The Eagles are the most energy-efficient cloakers, while the Hawks are typically somewhere in the middle.)
Plus, on a strategic level (as seen in
Federation and Empire), cloaked movement is a lot slower than cloaked movement would be. While a FireHawk can move six hexes via operational movement per turn (and a FastHawk seven) in
F&E, it can only move two per turn if cloaked (if I remember correctly).
Capturing samples of cloaking devices are handy for those looking to develop counter-measures against the technology; but for the most part, actually going so far as to introduce it into full fleet service is not considered to be worth the effort.
Oh, and speaking of licensing, the agreement that allows the Kzintis to be in the SFU seems to include the explicit requirement that the
(cat-eared no-tailed sentient-female related-to-Lyrans-and-others) version we have here is not the same as the (bat-ear yes-tailed who-are-the-Lyrans?) Kzin which the Niven estate holds the IP for. (That's why even though a lot of people post Kzin/ti here, official ADB documents will always refer to Kzinti/s instead.)
I suppose you could see the difference as being somewhat akin to how the SFU Klingons are always TOS-like, as opposed to how they are in the later Franchise.
I'm not sure if the use of Gorns as plural is also due to the terms of the licence, or is just an internal ADB thing; but I vaguely recall a mention somewhere of it being due to the Confederation having three near-identical sub-species on the three home planets.