Fwiw, i sort of like that. I understand it really sucks not being able to replace chips, especially something as simple as adding RAM, but i've not really seen a super compact laptop also allow me to replace RAM easily. My Macbook Pro Retina is quite compact, and it's proven to be a really important trait.
If someone makes them as compact and replaceable i'm on board, i just haven't seen it. Not saying it's not possible of course :)