Absolutely! Now, having used that word, let me address some key points:
1) db_errors are not necessarily errors rather SUGGESTIONS
2) Some persons are confused by terming the 'records of first-hand accounts' as 'first hand accounts'. If I document someone else's first hand account, it is second hand at best.
3) Documented first-hand accounts, even if technically second-hand, can still be valuable. The content should dictate whether it is in the biography and documents a fact or in the research notes as a hint.
4) If a random sample of profiles containing that phrase can be reviewed to determine how many of these are 'first hand' meaning the now living editor vs 'first hand' meaning the living editor recording the first-hand knowledge of someone alive at the time of the event, then we would have a sense for the percentage of the one vs the other. The former being in need of some remediation. It should be noted, though, that even those of the latter category - legitimate recordings of first hand experiences - might do well to have some textual alteration to clarify who the first-hand observer was and that they were alive to witness the event.
Long story short, I would say that both legitimate and illegitimate cases would benefit from being flagged.