This is obviously a very difficult issue. Understanding a process to the fullest detail is arguably very problematic. The phrase '''a higher being did it'' is not in any way a better explanation. You have no idea how it happened. I can say: ''Well I can't see how a higher being could have created everything, as this being would have been very complex to begin with.''
What limited things I know about the topic, yes, the universe is supposed to be expanding. As it gets bigger, it expands at a faster and faster rate. Therefore it is not infinite, but it has no boundaries either. Since it keeps expanding, it is not an issue entropy is increasing either. Locally, it doesn't have to be a problem.
I have read the article about an earh like planet a while back. What I remember? That it was a deduction. There may well be such a planet near a sun like star, but I'm not even sure it was observed.
Overall, it would not tell us much if life was more frequent. The universe doesn't look designed for life, if that's what you mean. Most of it is just vast space and matter acting in a random manner.