I hated it only because Tom and B'elanna finally got married and then they DIED.
Really, I was so incensed because the entire reason that I started watching Voyager was because of the episode Workforce, and I absolutely adored how the two had a connection even when they didn't know each other, and how Tom had an intrinsic, caring interest in the welfare of the baby.
So, I started watching the entire series from beginning to end because i wanted to see how their relationship progressed(and, I also had watched it as a kid and loved it but didn't remember anything)...and I was totally looking forward to C:O because i knew they got married in it...but I didn't know it WASN'T REALLY THEM.
They didn't get married till season 7, actually :-(
Thankfully, I had fallen in love with the series for the sake of the series and not just Tom & B'elanna, but man..what a blow.
Beyond that, I will admit that it was a really well-done episode that did have the emotional shock I believe the writers were going for. It also recalls how millions of people in our own real history have had interesting lives or survived significant tragedies but have died in obscurity, invisible and mysterious to history's archives... but nevertheless important. They have gone into Oblivion, forever forgotten and unknown. No one can tell their story.