False positive inspector error Batchable start method return type: List<CustomType>

Sort of an edge case but I know you like to hear about these things. Observe line 5

public inherited sharing class Ic2Batchable implements Database.Batchable<MyInnerClass> {

    private class MyInnerClass{}

    public MyInnerClass[] start(Database.BatchableContext param1) {
        return null;
    }
    public void execute(Database.BatchableContext param1, List<MyInnerClass> param2) {
    }
    public void finish(Database.BatchableContext param1) {
    }
}

Line 5 has an inspection error but compiles fine because lists implicitly implement Iterable:

Overridden/implemented method return types clash: expected type Iterable; 
found Ic2Batchable.MyInnerClass[]

Replacing line 5 with below resolves the inspection error

public Iterable<MyInnerClass> start(Database.BatchableContext param1) {

‌

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