The thing is, it isn't just javascript eval; any eval is bad.

In another life I did PHP shells. PHP (which has a weird relationship with JIT) had so many ways to use eval, without actually typing eval. One of the weird ways that was only removed in PHP 7 was the preg_replace function, with the e flag; which evals any php expression, outside the scope of the function.

My point is that if there is eval used in code; it either is meant for temporary use (because devs are lazy,) or the code needs to be done differently to support the desired outcome.