Nah but seriously that’s political spin, they pick a keyword, phrase, or topic and try to make it stick by hammering it over in unison, all sides do it globally. It’s a form of PR, it’s lame AF but not really a big deal.
The bigger problem is how the DNC was able to be owned by an individual, and how outright corrupt they are in their position of kingmakers.
The "this is extremely dangerous to our democracy" wasn't a jab at the Sinclair Media Group's "this is extremely dangerous to our democracy" campaign some years ago? Which was definitely a media conspiracy to push a narrative.
If that wasn't a reference and just accidentally the exact phrase, oops. If it was, then the implication that the democratic party's media machine was manipulating consistent messaging was pretty clear.