Wouldn't surprise me at all if they are, Cobalt. My ang khola (I think its called) is the heaviest and thickest blade I own. My only point about weight is for truly long trips. If you have to carry two or four weeks worth of food on your back pretty much everything else is secondary and the benefits must be weighed. damnit, I made a pun. or irony. or something.
I can carry 70lbs all day but 80lbs starts to get rough pretty quick. But more likely than not, I'll save the weight elsewhere and keep a larger blade with me.
edit: I have taken trees down with a mora too. Small trees. In all honesty, I have no need to cut down large trees while hiking/camping. The only large trees I take are the non natives on the property around my nursery. And for that, I've got a chain saw if my arm starts getting tired!