My point was and is that the failure would be no more apparent in CN than CCT.
You are still assuming that the failure is a cryptographic assumption and not an implementation flaw (cryptographic or otherwise). In the latter case the greater transparency of aggregate coin flows on the blockchain will prevent
some failures from being undetectable.
How is greater aggregate value flow versus greater transactions flow going to impact that? Not likely.
Rather I will buy an argument that says Cryptonote implementations are more mature (and Monero apparently heavily refined with many eyeballs) than for example CT implementations which is only in alpha afaik. And the cryptographic code may be much less complex in CN than CT.