Again, we don't know exactly how the ships will be rendered for atmospheric flight. Some of the ships, at least, seem to have hinges and hydraulics that imply some reconfiguration might be possible. Perhaps a T7 will sprout a pointy nose and huge wings, or the locust-wings on the Diamondbacks swing out, or the Kraits will retract those delicate-looking wingtip-antennae.
Or maybe the whole aerodynamics thing will be handled by handwavium-powered shield-shaping technology, so the ships themselves can be shaped like bricks and still soar like a bird.
As for the planets themselves generally, again, we don't know how FD are going to handle it. There are some pretty wild, extreme-edge-case planets in ED, with millions of atmospheres pressure and/or thousands of degrees. I'm assuming that, rather than a blanket "they're all going to become landable" rule, there's going to have to be some kind of cutoff, at which point the game will say "nope, this planet's too extreme, you can't land here". They might even put in some kind of extreme-environment grading of the planetary landing suite: Basic will let you land on Earth, Intermediate will let you land on Titan, and Advanced will let you land on Venus.
For your example planet specifically, you'll see that the temperature is rather low - the planet has an average temperature of 220 K, that's Antarctica-in-midwinter temperatures. You go spacelegging around down there, you're gonna need a thermal suit.