Jok is an elite shooter even by NBA standards. There are most certainly not a surplus of NBA players with his shooting ability.
And it's pretty comical that your (inaccurate) reasoning actually applies to Morris moreso than Jok. Morris doesn't possess any elite traits. Average athlete, average shooter, average defender, not a particularly adept passer. I guess he's really good at not turning it over, though? I'm sure that will get him on an All-Star team someday.
Monte shot 46.7% from the floor - 49.7% from 2 and 39.5% from 3
Jok 42.3 from the floor - 47.0% from 2 and 37.1% from 3.