In Russia/Ukraine, drones have proven to be a very real threat to deal with (arguably also in Iraq).
What this means is wealthy nations will snatch up or recreate this and deploy it. That will stop smaller resistance forces from either defending or attacking. Depending on the nation in question this could both good or bad. Just like drones, guns, or tanks.
Effectively, this puts the status quo back to where it was before mass drone deployments.