This is the opposite of dangerous. This is, dare I say, good reporting. Twitter had a very public technical glitch and the next day the head of engineering resigns, there is an obvious connection that can be drawn. If news outlets don't make obvious connections, governments and business are allowed to frame things however they want.

Journalists are not courts, they do not and should not have to have a policy of "innocent until proven guilty". They should aspire to narratives that are based on a preponderance of evidence.