"Only if you want to be obtuse and ignore the fact that the Crypt Lord ultimate is currently in the class lineup."
If you can reach that far with locust swarm you can do it with every ability from every hero, as such your entire argument falls flat.
Its pretty basic. You can either argue that an ability has to be exactly like wc3 and then the crypt lord is not in wow - or you can argue that you can bend the abilities to fit into wow and then all wow classes including expansion classes are a mishmash of all the heroes in wc3.