I agree; there is, I think, something faintly disturbing about B5's regular portrayal of the media and elected politicians as a threat to society - generally because they have the temerity to request Our Heroes occasionally justify their actions.

(I've always really disliked the sub-plot in "Rumors, Bargains and Lies", where Sheridan intentionally makes use of the Voice of the Resistance to mislead the league worlds into signing on to his new alliance; an alliance which, it must be noted, does very little to justify its existence for the rest of the show...)

And the use of the trope here is particularly unsubtle (like most of the episode, really). The reporter here serves no purpose to the story other than to show up, be unlikable, and get in the way... How dare she try and claim the people have 'a right to know' about the Ikaran weapon's attacks? Next she'll be claiming the people have a right to know about who funded the excavation of the weapon, or what happened to it after the episode!