I've had more than my fair share of failures in the start up world. It always drives me crazy to see internet companies that have absolutely no technical ability succeed, while competing services that are far superior technically never get any traction.
"Why are we paying for backups? The database has never failed (yet)"!
One interesting observation I can make: no correlation between excellence in operations and commercial success!
But if no one is watching to ensure the move was finished (or they got distracted), then something many people treat as set-it-and-forget-it could easily get into that state.