Leagues of Votann seems to indicate multiples, though.
True. An with the new look being shown, if demand is high, more figures will be released.
Also, I did some digging and it seems that the "Tyranids ate the Squads" thing was an offhand remark by famous babbler Jeremy Jarvis. He tends to wax incoherent a lot.
Maybe they did eat the "squads"
, although evidently not all the dwarfs in space.
Space, the final frontier, it is after all a big place. Being small of size, but not in stature, perhaps they weren't all found, eeked out a further existence somewhere, and they have arisen again to be competing for ... space.