I haven't watched it all and have only a passing familiarity with Neighbours (I'm pretty sure I used to watch it a lot during an extended trip to Australia as a child and found it baffling), but I was particularly impressed with how much they pushed Hollywood hunk Guy Pearce with his former love interest, a woman of a certain age who is still beautiful but not the starlet you would see him put with in film work (because there's always a double standard with older women vs. older men). They didn't hesitate to make those two a central storyline in the finale despite both being well over 50. That's classy. And what a great final line. Up there with Search for Tomorrow.
However hokey it is that everyone on the street suddenly decided to stay on, I think that's the ending they owed the audience - I think one of the creatives said this as well in that recent special about the show someone posted, but I've always felt that serial dramas owe it to their audience, especially younger audience members who grew up watching a soap (like so many of us did), to give them a sense of comfort that that world keeps going, that it doesn't conclude or die but that it's just out there where you can't see it, with stories still going and those characters still living their lives. They did that beautifully.