No it's not. The NSA has been the Federal Govt's designated expert on cryptography since the end of WW2. You are pretending that the current set of NIST standards and every previous NIST standard has not had incredibly intimate contact with the NSA.
You're lived experience tells you to trust the NSA, at least as it relates to NIST standards.
You're lived experience tells you to trust the NSA, at least as it relates to NIST standards.