GosuGamers link
He previously wrote an article comparing Magic to Hearthstone and some of the information are repeated in this interview. An interesting new point bought up about Hearthstone is on how most of the Hearthstone tournaments revolves around popular twitch streamers which is really true.
I think its digital nature doesn't really encourage people to leave their homes, other than for the Fireside Gathering events to get the card back, which leaves tournaments to be mostly online. I don't know whether those online tournaments require entry fees like how most card tournaments do and if they don't and rely on sponsorship, I guess only popular players will draw viewers. Or, perhaps there are small tournaments, whether digital or outside, but we just never hear about them...