I'd go even further, peuce.
1. An RA in C can happen due to high rates of change- even if there are correctly assigned separation standards. They still get actioned and reported, even though there was no danger of an airprox. If you were honest, Leadsled, you would concede there are more 'false' RAs than legit arse-savers.
2. Due to the structured nature of controlled airspace, you will get many more aircraft running over the top of each other. Statistically obvious why you will get more RAs in C than lower classes of airspace.
3. There are many, many more aircraft with TCAS operating in C than the lower classes. Once again, statistically obvious. If you haven't got the equipment, you can't have RAs.
But the real biggie is, indeed, that for an RA (an actual arse-saver) to occur in C, someone stuffed up. In E- nothing need go wrong except a failure of un-alerted see and avoid. How many warnings about THAT do you need? To design the system to rely on it? Talk about 'dirt road airspace'!
Is the explanation clear? Your misuse of a stat like this is just pure obfuscation, Leadsled. Learning at the foot of the master? Although, regular readers will be well and truly awake up to the tactics in use in trying to polish this turd.