Hello!
This is a really good question!
I don't want to speculate on an answer. I would highly recommend maybe contacting Samsung directly on this one. When dealing with the longevity of a device you can never be too careful. Hard to say if water would seep into that crack and potentially cause an issue.
While I know customer service can be rather annoying, it would be worth having a firm answer from the manufacturer. Ask for a level 2 tech or a manager. I would assume they would probably tell you no based on it has damage, but it's worth checking into!