I haven't even married off my first gen and I've been anxious about something bad happening to either of mine. I thought about trying to test things a little, but as there are so many variants (who the tama marries, where the tama came from, even what kind of device you use to connect to the app...) but it's too much for me to handle.
The only thing I would think might help our cause is to tweet at them, write to their facebook page... things that are public. But of course, as always, trying to be kind and give them as much info as possible (anything rude has a bigger chance of getting deleted or ignored)... do things to show the product in a negative, but truthful, light (which, as someone who is just scared herself, I admit would be hard to do when someone has already had a glitch happen to them). Maybe even suggest the story to gaming news sites or big toy review sites... the more news about this the more pressure they have to *at the least* admit there is a problem and (hopefully) have them say they are trying to fix this. Or just tell us what we should not do until they fix it (like, don't marry Tamas unless you know and trust the owner and where they go their Tama's genetics).
I could see them just as easily blocking/deleting anything public about this too... so really, it's all up to how their PR team wants to handle this.