Parity is not ambi-safe

[Ertetert]

https://cointelegraph.com/news/parity-wallet-continues-investigating-300-mln-lock-as-ambisafe-reports-no-losses


For a second time. Parity users lost money while Ambisafe users are ok.

Two points are too little to search for a pattern but... Could it be the case that when it comes to money design open source solutions are just inherently worse then proprietary ones?