Pacific wrote:I preferred the lore back when there was no connection between Genestealers and Tyranids. Back before
every single dangerous alien in the
40k universe started being re-written as related to the Nids in some way.
You preferred when there were two six limbed alien monster races whose battlefield tactics centered around running at you, and whose schtick was biological shenanigans?
They overdid things in 3rd when they started implying that catachan devils and fenris kraken were tyranids but that was an attempt to increase the cosmic nature and scale of the tyranids threat.
Vanguard organisms make sense in the same way that the space probes in TESB make sense. The Galaxy is vast, there isn't biomass everywhere- it's more probable to float right through the milky way and hit nothing at all.
Fart out a few million stealer pods and shoot them off towards light sources and you can reduce the odds of starving before you ever find a meal.
You may even get an invitation to a free meal, rather than having to expend energy and biomass invading.
It adds a sinister dimension to what would otherwise be 'space monsters attack!'