after veiwing the pictures I agree it appears that way. I am not a huge fan of ball jointed hips on SW figures. The ROTS Obi-wan became Frumpy-Wan Kenobi. This figure looks great but the pelvis looks a bit diapery. I hope it's better in hand as your hope suggests.
The C-3P0 looks like a disaster. He is one character that is doomed on vintage style card backs.
I don't mean to pick on you at all, but, firstly, for C-3PO, collectors have always
whined how we want a SA C-3PO. Now Hasbro has said that if
they do this, then they can't use the shiny-looking armor, because it's a particular type of plastic/whatever that can't be easily conjoined in numerous places with ball joints.
And as for the Luke, well, chances might be good that the joints will be fixed. Look at the 2009 TCW ARF clone trooper. Initial pictures showed the figure with extremely wide hip joints, but Hasbro fixed this so that the final product's joints were normal.