MATE has forked a number of applications originating as the GNOME Core  Applications, and developers have written several other applications  from scratch. The forked applications have new names - mostly in  Spanish:Caja (box)  File manager (from Nautilus)Pluma (quill)  Text editor (from Gedit)Eye of MATE  Image viewer (from Eye of GNOME)Atril (lectern)  Document viewer (from Evince)Engrampa (staple)  Archive manager (from File Roller)MATE Terminal  Terminal emulator (from GNOME Terminal)Marco (frame)  Window manager (from Metacity)Mozo (waiter)   Menu item editor (from Alacarte)What it use different name for well-known programs? It make user confused (e.g. gedit foo.txt breaks and I have to run pluma foo.txt)They are almost the same as the original ones. Wasn't it better they send their modification to main branch? 
What is the reason behind changing the name of well-known apps?
mate;gnome2