Saw this at a site. Foundation masonry. Does it matter that it looks like this? Will be backfilled on both sides and filled with concrete, I believe. Could the cavity walls be wobbly if these blocks move?

Mortar still looks green-were you there whilst they were at break? 
Should be jointed up even in the footings-it encourages full joints as they’re easier to joint. 

I thought it can't be right. Hopefully the walls will stand firm owing to the backfilling both sides and lean mix in the cavity

What was the spec given to the contractor for the blockwork..? If it’s perps full filled and pointed then that isn’t to spec, but if you’ve not asked for that then you’re not paying for it. 
 

TBH it only looks like the corner being set up so I would want to see it when they have done a couple more courses before passing judgment.