Boy am I glad that I decided to keep 2 maxed copies of the Chaos Legion soulbound reward cards instead of burning them for glint!
yeah... I burned :D
I think brawls should be excluded at least, tournaments I am not sure, as it is an earner too. Brawls though already suffer people not paying enough attention.
But I think leaving tournaments as a place to earn just gives more incentive for people to complete their collections or rent important cards. In addition to survivor, I think we want as many reasons as possible for people to have "complete" collections. I don't think it is wise to have people compromise their tournament play based on card availability due to survivor.