I used to be one of these people... but honestly, Spore is obviously not representing the mechanics of evolution literally.
The reasons for the lack of natural selection and other massively important mechanics to evolution are that it is nearly impossible to create a game from that... And it would take away one of the original main concepts of the game; that being user created content: such as the creature creator.
I am somewhat a very rationally driven person, completely aghast at the ideas those following religions make in fruitless attempts to connect their incompatible beliefs to reality.
As much as I'd like to see a game that realistically presented a procedurally created biosphere of creatures that develop based on their environments, that wouldn't be Spore. Spore is not only the above idea, albeit dimmed down, but a means of incorporating as much user-generated content as possible.
I once saw someone say that the more creative you are, the more you can enjoy Spore.
Alright, an explanation for Spore's metaphor for evolution: it is not literally depicting the mechanics of evolution, but rather making several metaphors that should make sense to those who already understand its mechanics.
The creature creator is a core concept for Spore, and with a certain level of realism would be impossible. It does pertain to certain evolutionary processes however... As a player is confronted with an impassable situation; such as having not enough abilities to befriend or wipe out another species, the player generally has the creature mate and edit the next generation; which in reality has random mutation as a consequence, but really, is that any fun?
Also, when looking back at one's 'history', more often that not it really appears that the creature underwent procedural, gradual changes over time in response to environment. I may be missing many, many other points, but whatever.
tl;dr, people shouldn't take Spore's representation of evolution seriously and really notice all the revolutionary technology -yes, many of the mechanics of Spore have never been dealt with before- laid out in Spore and just try to enjoy it- it's just a game.
I don't feel like I'm going to return to this thread as starfishs are probably just going to give me prolonged pollution to my thoughts after reading their posts.
Discuss and flame me.