Yes of course, the remaining human survivors are going to risk all manner of deadly creatures (terrestrial and otherwise), the combine, desert conditions, not to mention radiation poisoning, all to repair a massive, top secret facility that most people were unaware even existed, that in all honesty probably took at least a couple of decades to complete (given the overall apparent size of Black Mesa), and also happens to be the epicentre of the biggest scientific disaster known to man.
Erm, no. Also, you went majorly off topic.
On-topic: I didn’t know that was even meant to be Kleiner next to Eli, doesn’t even look like him. Oh well, just another curious incedent of game development…