[inflagranti]

The word "cowardly" seems completely inappropriate here. First off, the second crash clearly was only harmless by pure chance, it could have easily killed someone - would you have written the same in such case? Secondly, how many other countries' national postal services are even running experiments like this at all? And above a major metropolitan city nonetheless! This is exactly the right reaction, temporarily suspend in the name of safety, address the issue, and then resume.