Well it's a little more complicated than that: Other than the uniformity problems dual-drbg is a secure PRNG … against anyone who doesn't know the matching disc

Well it's a little more complicated than that: Other than the uniformity problems dual-drbg is a secure PRNG … against anyone who doesn't know the matching discrete log for the parameters. If you don't consider a cryptographically locked single party back-door to be "less secure" then I don't think we can point out where they've done something to make things less secure.