Manufacturing an argument the other party didn't make, ("You are assuming that the regular media is the default, the truth"), and choosing to rebut that strawman then their actual key point ("It's about combating weaponized misinformation"), is disengenuous in the extreme.

The weapons now are bigger, faster, have greater reach, higher fidelity, multimedia appeal, vastly more intelligence and data, can be tuned in realtime, and delivered with precisionnto higly selected audiences completely under the public radar.

All of which "Weaponized misinformation has existed as long as human speech has existed" utterly ignores.