If something doesn't work as it should be, then there is a problem with the flag. Yeah, it happens that flags doesn't switch and trigger a scene, like for example the nuru massage gel bug. However, it still would be better to contact a member of the official support team, who could take a look at your save and perhaps contact Faerin for consulting. This way many other bugs had been identified by Faerin and fixed in the next update.
Trying to force a scene to trigger might actually be the wrong way. It would be better to know, why it didn't trigger in the first place.
This has nothing to do with feeling superior or whatever, but in the first place to identify a possible bug in the game.
I hope my post gives you a better understand, why we supporter don't want you guys to mess with the flags and instead ask us for help.