CIG's imminent success >>> no
downfall of the skeptics >>> yes and only due to EDO's release. The more vocal ones were often ED players. With the release of EDO, we hear them far less than before. A part of them can't use anymore a whole bunch of their arguments against SC (buggy alpha, poor framerate, CIG doesn't fulfill expectations, etc) without seeing them applied also to EDO. Another part of them like and play SC now and stopped beeing skeptics. And another part of them who loved to mock SC for the fun have simply lost the desire to do it after the debacle of EDO and aim their energy toward FDEV.
Also the fact that some well known ED players (that are not the evil biased SC streamers) just have shown to a lot of skeptics that SC have gameplay, can be enjoyable and be played without giving more than 45 € to CIG, transforming those skeptics gamers to neutral gamers.
The amount of skeptics will not regenerate by itself. It is only dismishing patch after patch. You can see it here you are far less numerous than before to post.
You do know that ED being bad doesn't make SC good right?
I think the pool of skeptics will continue to grow, as it has been steadily growing for years now.
Here is the subscription count for the refund sub. Still growing at a steady rate despite Odyssey's release.
I'd say this shows your statement to be wrong