I really thought it was going to explore more of the connection, show what humans are able to do with all the knowledge shared across billions, maybe have a main character that’s cynical but not just wanting for things to go back to the way they were for no good reason and just hating everyone and everything - except it they have long legs and are their sexual fantasy.
Imagine starting to research the construction of a spaceship and then suddenly connecting with an unexpected other species on earth e.g mice, pigs, dolphins, whales, etc. and having to figure out what to do then. The virus obviously infected mice and they were intelligent enough to infect humans.

The way they “accelerated their plan” after being discovered and suddenly the entire world simultaneously gets turned also just didn’t make sense. They could’ve even explored that aspect a little but it was just a deux ex machina. Her wife/girlfriend/whatever dying was also unnecessary for the plot. The protagonist was already hating everybody. The wife’s survival wouldn’t have changed anything in that regard. Instead we got to watch her scream, moan, and whine for 3 or so episodes. I clocked out once the dude started his trek.

IMO, they could’ve done so much more.