The situation may be horrible, in which case this site may be an unwelcome reminder of the horribleness of the situation. But this site doesn't make anything worse or tell you anything you didn't already know.
Some will never see their parents again. For some of us, even when we see our parents they are too far lost in dementia to realize it. Some will lose their parents tragically early. Some will get far more time with their parents than expected. Some will become their parents' or in-laws' primary caretakers and privately sometimes wish in their hearts of hearts they saw their parents less.
None of that changes the message of this site. We have a finite amount of time on this earth. We could do worse than to spend some of it with those we love.