I've also seen that video. According to Universe Sandbox's simulations, the exomoon does lie in the habitable zone of the star. However, there are a huge number of factors that go into determining whether an object is habitable, not just its location in the system. We believe the exomoon is actually quite large at about the same size as Neptune. Therefore, there is a likelihood that it is a gas giant, or rather, gas dwarf. Simple organisms can exist within gaseous and massive objects, but you really do need a rocky crust for civilisations like ours to develop based on our current level of understanding.
Personally, I am sceptical that this exomoon will turn out to be habitable. It's simply too massive to not hold on to a substantial atmosphere. Even if the atmosphere wasn't analogous to a gas giant, the pressure at the surface would be tremendous, possibly even more than Venus. Those conditions are not fit for life as we know it.
There's actually a few voices out there who suggest the exomoon is actually a double gas giant system with its parent.
I don't know what the exomoon will be called, but it probably would be some kind of numbered and lettered designation.