Hey there,
I am really sorry for the delay of this reply as it is a weekend for us here.
Try enable this setting from your site backend > Easyblog > setting > SEO > Apply Translations On SEF Links and see whether this 'blogger' word can get translated or not?
If this 'blogger' still remain to show blogger, perhaps you can try create a menu item for this "(Author) All authors"
http://take.ms/eFEUw , so it will show your menu alias as what you set from this menu item.
Hope this will help.