I don't know, it's just that as someone that has been on team starco from the beginning it all felt very underwhelming. It felt a lot at that point that they were just finishing their check list for things that needed to happen before the show ended.
Most of the blame goes to dragging Tomstar on for so fucking long. I can understand plot induced retardation to avoid characters hooking up until the plot deems it necessary but using Tomstar to avoid the inevitable just cheapened the eventual endgame a bit thanks to stuff like Starco having their beach date while she was still technically dating Tom, Moon and River giving their blessings to the relationship only for her to change her boyfriend a week later and never taking any of the obvious outs they had.
If they were going for a more subtle hook up it may have come off as better if Tomstar had ended a season earlier and they would have just started dating during those comfy days they spent on Earth in the late half of S4 rather than as a sideplot in the same episode that Moon is revealed to be the mastermind behind Mina.