Ok, I will only post an answer;
Evolution can teach life great things, see extremophiles.
And conditions on hypothetical moon/s of 16 Cygni Bb or HD 132406 b are not nearly as bad as some extremophiles can stand.
That we humans do not like hot steam batch or being in cold climate does not mean that some unicellular or multicellular equivalent of Strain 121 or psychrophiles do also.
I mean, that evolutionary pressure can force microbes to adept and when the conditions are planetwide eventually evolve, bacame multicellular, land dwelling, sapient, civilised...

IMHO the reason for what there are almost none higher extremophiles on Earth it is because there is almost biome that is good for them.
Imagine, if you was a hot acidic lake dweller, how you will get from one lake to another?
But if entire ocean was hot and acidis, you can have a lot of space and food, and so these spieces might have even a civilization!
There is no reason that extremophilic life will be stunted on the level of terdigrades or blind inverberates if it has enough biome.