No, it wasn’t, and I think that adding the crisis at the end in which two people just happened to be needed was a transparent attempt by the scriptwriters to whitewash Chris Pratt’s actions.
That said, within the framework of the story, it was essentially a lucky break for Chris Pratt’s character that does end up justifying his actions, even though he had no way of knowing this in advance.
That’s probably true, but not only do I disagree with the characterization of Chris Pratt being a psychopath, I also disagree with him being characterized as “evil.” His actions were morally wrong, but not “quite evil,” in my opinion.
The planning seemed to consist solely of pulling out the manual for the hibernation pods, and figuring out how to override the timer. (And I don’t recall the exact sequence, but he may have already pulled out the manual before when he tried to put himself back to sleep.) Most of the weeks or months of him agonizing was simply whether to do it or not.
When he finally did it, it took less than a minute. This absolutely could have been the actions of a desperate person who had a moment of weakness.