if you can't find the CCA for a battery, it is easy enough to measure it.
See, for example, Testing Lead Acid Batteries – Battery University
or, if that's too fancy, you can always go back to the definition: "Cranking amps are the numbers of amperes a lead-acid battery at 32 degrees F (0 degrees C) can deliver for 30 seconds and maintain at least 1.2 volts per cell (7.2 volts for a 12 volt battery)." (Automotive battery FAQ questions from GNB Systems
) -- what's nice about specifications is that you can always make your own measurement (and there are even detailed specifications on procedure if you want to get really picky).
What Trojan is telling you when they don't post a particular specification like CCA in their marketing literature is their intended market for a battery.
The GNB link is an FAQ that also cites deep cycle as having thick plates but they don't tell you, like the NAWS FAQ does, exactly what the range is for the batteries commonly available at retail for RV's and autos. Also, if you read critically, you'll note that it's a relative reference with no boundary implied or stated.
If you have your thinking cap on, you might consider what a CCA will tell you about using an inverter to power your RV microwave off a battery on a cold morning to heat up a cup of coffee.
That 'thinking cap' might also be useful in evaluating the anecdotes about sudden battery failure on deep discharge - consider why jumper cables are common items in auto emergency kits and how many of your friends (or even yourself) have need a jump start because you left a light on in the car or something. Many have had such experiences, even several times, and have not had need to replace the battery in their car. How does that experience fit with the anecdotes you hear?