Astronomical seeing

[kos]

".......Actual resolution is limited by atmospheric turbulence, well known for its degradation of astronomical seeing. The good news for spy satellites is that turbulence close to the object and far from the camera isn't as disruptive as turbulence close to the telescope. That's a good thing, because adaptive optics don't work as well for large-area images as they do for small astronomical objects..... "
I found that as I read article about reading newspaper from space via surveillance satellites.
So is that true about atmospherical seeing from above.Is it less and can someone tell exactly how much less would it decrease for instance if we are trying do monitoring from space down to earth through atmosphere . Let suppose that the angle of view is zenith angle for practical purposes. I don't ask because I'm concerned to privacy but as real scientific question cuz I'm trying to understand how atmospehric blurring disturb the original image in astronomy . Im studying now about telescope and looking for possibilities for other exoplanets as Earth.And curiosity makes me ask if this is the case with atmospheric seeing because if it is so it would be much more easier to look through alien atmospheres as we look from above similary to spy satellites looking on Earth
So does astronomical seeing decrease and how much if we look at a straight line (zenith angle)down to Earth through atmosphere from above ?
Thank you in advance