Skip types hook - should compare field type?

Problem/Motivation

hook_multiple_field_remove_button_skip_types_alter() is described as "Modify field types for which remove button will not be added." - however the logic in line 194 of the module compares the $elementType variable, not $type. Is this intended? I think it should compare (field) $type, based on the hook description.

Proposed resolution

Attached patch compares the field type ($type) to anything listed in $skipTypes in the logic.