Why is the aborted event that was supposed to occur last night primarily assumed to be an attempt on the POTUS?

It is certainly much more complex to do that (thank you USSS), but there are other attack vectors that could have helped the media narrative. What if the "connection" referenced was a connection to QAnon. What if it were planned for violence on the media from those seemingly connected to Q?

Wouldn't that support the media narrative?

Wouldn't that be the majority of news today?