From the perspective of "putting everything into this ending" it can affect how the rest of the game can play out, the ending has already shown that the characters do have a good fallback if they end up in any financial issues so that means no tension for if a money issue comes up, or if a character starts freaking out about finances they would look stupid as this ending shows they have plenty of options.Beg pardon? It if is a possible ending then the "rest of the game" isn't suffering. Much like the option to have the quickest ending in the game, or to hook up with the psycho bitch and boobs buddy. Does it take away from the progression of the story a tad, sure, but still doesn't mean it's suffering. -Facepalm-
The ending also shows that the five girls actually get on well together so drama and issues would be difficult to create between them.
Of course I can easily be countered with that this game was originally supposed to be light hearted, I'm reading way too much into it, or I really want to see how the story moves forward (been about 3 months since the last story progression right?) so just pick one of those and roll with it.
Plus then we have the developers other game Endowed which hasn't been updated in the same amount of time which has also left on a cliffhanger.