I really don't think that was the message here. Science and hubris are pretty common themes in Hickman's work and let's face it, Reed it the perfect foil for that. I also read the story as a whole a bit differently, because not only do all the other alternatives fail horribly anyway and Reed realizes that no, he can't fix it all, those vignettes stand in deliberate contrast to the rest of the story, in which all those alternate versions of the FF come together and fight on bravely and full of hope, despite facing overwhelming odds, while Supreme Intelligence Reed dies alone and in despair. It's only their courage that convinces him to try and fix things anyway. Seems like one of those classic We Are Family Moments the FF are so famous for to me.
Also, that Really Ominous Thing at the end? It hinges on a lot of people having the exact same idea and then working together.