ok, that has to be either worst joke ever or lame attempt at trying to post serious troll comment.
if anything... shell is abso-fucking-most configurable desktop ever. you can extend/change abso-fucking-lutely everything with simple javascript. granted, since g3 was just released, not many extensions are present yet and gnome-shell by it self is not really feature rich environment and neither was any other desktop when they switched release. moving from gnome 1 to 2 was especially terrible. old and new gtk worked and looked differently, one had utf8, other didn't... same troubles at kde camp from 3 to 4. c'mon developers need to sleep too and if they wait to release full featured version without period of change they'd need to support 2 versions.
if anything, work like that really deserves benefit of a doubt until 3.2 or 3.4. people making extensions might surprise you. just google on how to make extensions and see how brilliant it is. and yes, i do love shell... after i installed places extension and made 3 extensions for my self i can really say i was never so productive