Haha, because I dont know? Because I don't use it that much and the defaul is already installed I like to keep the number of applications in my menu to a minimum and I like the standard fileman because of it's speed and it just gets the job done. Nothing more, nothing less. Sometimes, filebox is a bit slow , hamster-filer is currently in devel so the standard is for me enough except it doesn't look in home.

Anyway, I thought filemanager is part of the hildon-DE, it should have just like the big DEs an option to view system files.

Have to admit, it's not really neccesary because of the 3rd party apps