We were at the MO last November and it was pretty deserted - almost no other adults, let alone children! I dont think there were ever more than 6 of us at breakfast at any one time.
It will be busier now that more of it is open, I assume, but it is a big site and during the day people tend to be out in the mountains or in their private pools. I honestly can't decide if it is pro-children (in that there are private pools in many of the villas, oxen walking around) or anti-children (in that it is a very quiet place). There is certainly no kids club!
No view on the FS as we've never been.