The reviews are bad, I don't deny it, but they don't complain about the switching civs, but about balance, about genericity, and the overall blandness, the race, the pace... But the civ switching is overall quite liked.
It's like complaining about the French Ancien Régime and taking as a conclusion that kings are inherently bad and we should automatically get rid of them, while it's more complex than that. The idea of kings is not necessarily bad, it's the implementation in France that was a problem, but looking on the other side of the Channel, the way they implemented their monarchy made it much more palatable. Well, I'm still utterly convinced that republics are far superiors than monarchies, but for different reasons than some people.
Same thing: people complained about Humankind, but not because of the civ-switching, but because of all the other things that were around it and made the mechanic meh. But all the complaints about Humankind seem to have been answered by how Civ VII will implement them:
- The Humankind culture switch was just a first-grab so planning your empire was difficult -> everyone will switch Ages at the same time, and multiple version of the same civ will coexist (not really sure if I'm fan of that duplicate thingy in particular, but let's see).
- Because you wanted to be sure to grab the culture you wanted, you were encouraged to rush through the eras and not really enjoy each culture you have, lacking engagement and attachement to it -> each Age will be longer, so you'll have time to get attached to your civ.
- Each culture had quite generic and bland bonuses, due to the inflation of cultures, so you switched and had a +10% influence generation, which does not strike as memorable compared to the culture that god +10% science generation (they changed it with some of the DLC cultures, like the Nazcans or Swahilis who could really influence your gameplay) -> we saw some of the bonuses of some civs, and as for now, they really have peculiar mechanics and not just flat modifiers, which would already make each culture more memorable.
- There was basically no interaction with emblematic districts, you put one at a place and then considered it just like any other regular districts for adjacency bonuses -> for what we know, each civ will have 2 emblematic buildings that, when put in the same district, will create a new emblematic districts, there is progression, there is goal, some sort of mini-quests that makes you attached to the civ.
- Outside of the legacy trait and an emblematic district, there was nothing really different to do between factions and cultures -> the fact that you already have a small policy tree for each culture adds a small layer of uniqueness.
- There was no way to remember your cultures and your neighbours' in Humankind apart from the colour and the avatar, but the avatar were also so generic and looked like each other so much that it didn't really help, none of them had a personality you could remember -> right from the four we saw, each of the Civ leaders is more alive than the whole roster of Humankind, Augustus looks nothing like Hatchepsut or Ashoka or Amina, it will make a much bigger and stronger link throughout your story than whatever Humankind tried to achieve. And we remember people a lot more by their personality than their look, usually: I mean, we can distinguish Wilhelmina from Gilgamesh, but Gilgamesh is ingrained in our collective civfanatic minds as Gilgabro who is extravertidly large, and Wilhelmina as the small rotund woman who throws tantrums for trade routes. I don't remember any personality from any Humankind avatar.
For all of that (and probably other elements I forgot), comparing Humankind to Civ VII grinds to a halt quite quickly and is not relevant at all whatsoever once you scratch the surface. It's like saying the British should get rid of Charles III because Louis XVI was guillotined by the French. Like, it has nothing to do with eachother anymore, and the circumstances are so far apart that comparing them on the sole quality of being monarchs (or being games with civ-changing mechanics) is ludicrously nonsensical.
So we can be wary, of course, I'm not saying otherwise, but if you want to complain about something, at least make the effort of knowing what you're complaining about. It's embarrassing.