> The only line I'd remove or finesse is "Yeah, this is complete garbage." Otherwise, I think this is a great example of how to convey anger without personally attacking anyone.

Strong words are best way to convey the issue in a way that leaves no room for inaccuracies.

Sugarcoating it helps no-one as some people might inaccurately think it was not a big fuckup. If you use words from the very end of the expressivenes range there is no room left to doubt