on PluggableTreeMorph changeSelected selector

aTreeMorph := PluggableTreeMorph 

on: self 

list: #items 

selected: #selectedItem 

changeSelected: #onItemClick:.

MyClass>>selectedItem

    ^ myCollection collect:[:item |  PluggableListItemWrapper with: item]

When a item is selected, PluggableTreeMorph passes the wrapped item to #onItemClick:

Shouldn't it be more consistent to have the instance of  PluggableListItemWrapper passed instead ?