Not quite: he doesn't trust the constants. That's a big difference. He believes based on reading secret Snowden papers that the NSA has manipulated them via relationships with the industry. There are other curves that are NOT from NIST, like C25519, that are popular. In fact, the twisted edwards curve computation variant is also growing, which isn't the "traditional" (does that even make sense?) elliptic curve.
Now that doesn't mean the NSA hasn't fiddled with C25519, but I'd be surprised if they mind-controlled (or extorted) Bernstein into publishing a compromised curve.
Now that doesn't mean the NSA hasn't fiddled with C25519, but I'd be surprised if they mind-controlled (or extorted) Bernstein into publishing a compromised curve.