All well and good, but at the same time, a 4-cost, 2-STR neutral character that no one ever played pretty much shut down the use of Treaty decks at one time in history. It was really the same thing: the threat existed and the risk was too high even if the likelihood of it was pretty slim. In a parallel situation, one "cannot be saved" discard plot had everyone rethinking the relative value of 2-STR characters for more than 2 years.
Sometimes, it is the threat or perception of a situation rather than the likelihood of it actually happening that changes the environment. Sometimes it blows over (MwNK; first turn Threat of Winter in Stark decks), sometimes it doesn't. We'll see which way this goes - and what FFG decides to do about it, preemptively or otherwise.