I'm not sure if it's bridal veil netting or not - tho I'm fairly familiar with that material from back when I did wedding gown alterations, I seem to remember it being a little heavier, and not as stretchy.
This stuff stretches in one direction quite a bit, and very little in the other.
The hole size would not let mosquitoes in, but it might let littler ones in. If you look closely at no-seeum netting, there seems to be a larger grid of heavier thread, and then the "holes" btwn that larger grid are "filled in" a bit with super-fine filaments (which is why the no-seeums can't get in). The holes in this netting are about the same size as that larger "grid" in the no-seeum (which is still quite small).
Dunno. It just seems like it would be difficult to cause a baffle to tear, unless the material were really flimsy. Seems like I'd worry about it if I could tear it with my hands, but otherwise, not so much.
But then, I've never put a bag through lots of abuse either - so I'm sure there are failure scenarios that I may not be imagining now - where somehow you really could torque the two bag layers in such a way that it would rip the baffles?