I like the shared sadness, but this is probably going to be an unpopular opinion. As the old saying goes, "If mama's not happy, ain't nobody happy." When a member of my family irl is upset, generally the mood of the house is somber. There's no one smiling and going about life like everything is fine.
Now for my constructive criticism: I wish moodlets like this mentioned WHO in the family is the root cause of it. Instead, I have to go on a hunting expedition to find out how every single family member is feeling. Was it grandma who got sad reminiscing in her rocking chair? Is it the teen about to pee his pants? As a player of big families.... I kinda need more to go on.