To be fair, Death on the Nile is aimed at a completely different market to the one Paramount is pitching these Star Trek films at.you should tell these poor schmucks that they "Don't understand Hollywood. JJ. Does"
https://www.20thcenturystudios.com/movies/death-on-the-nile
and Star Trek is not a B-level franchise, whatever that means.
But if you could make a Trek film on a $90 million budget, you'd probably make money.
But what's wrong with a sci-fi mystery? JJ Abrams made his name as the "mystery box" guy.