All the decks I listed perform better the more experience their pilots have with it. That’s what the data show the VS folks. I don’t see how that could happen if winrates are primarily a matter of matchup/draw RNG. More importantly, I don’t see how that could happen only with some decks and not all decks.
Dunno, maybe you have a deeper insight into the current meta than the guys poring over a quarter of a million games last week. Even the best analyst can miss things in the data from time to time. At the same time, if I have to choose between a position based on data vs. a position based on personal opinion, I’m gonna go with the data. Particularly when the personal opinion, well informed as it may be, comes from someone who has a pretty clear bias against the current state of Hearthstone.