That's the point. There never was any "crime."
Trump was prosecuted for challenging the power of the democrat party. As @Kafka pointed out, Trump engaged in a perfectly legal "standard and common business practice." What Garland, Bragg, and Merchan did is seditious conspiracy to overthrow a national election.
God it's like talking to a toddler. You are incapable of understanding even the most SIMPLE concepts.
SOME NDA'S ARE ILLEGAL.
SOME NDA'S ARE LEGAL
ERGO: NOT ALL NDA'S ARE ILLEGAL.
You seem flummoxed by even the most simple concept. You must a special needs person.