Dunno. people seem to be more amused than straight out disgusted and in this regard it works as planned.
Fanart will pop up on sites like FA and you just got yourself several thousand extra sales JUST BECAUSE SNAKEBOOBS.
Or maybe it's furry bait?
I'm sure most people won't care but some will buy it because there were snakeboobs in the trailer.
This seems like the most plausible explanation. I learned recently (THANKS BAY12) that there is a common 'im being eaten alive by a reptile or some other large creature that can swallow me whole' fetish that is distressingly common among the furry community. I guess this would scratch that itch for them.
The worst part is that I learned this on the upper boards. I think in Dwarf Mode Discussion even.
Funfact. The previous game had a "reaper" terror unit concept that ran around the map ignoring cover and ate soldiers and civilians. It got scrapped for whatever reason.
Also i think the snake alien actually eating your soldiers will be pushing it too much. besides asphyxation is also a fetish.
Oh and weird fetishes are not just a furry thing. If you take a look at deviantart (betted don't) you will see a lot of assorted weirdness with humans.
Besides i wouldn't say vore is a common fetish. it's a fringe but there is demand and people commision art with it and some artists draw it to attract some attention and potential customers that would commision them later.
Anyway shutting up now. We better not talk bout those things here.