Smith is okay but Warner is not? I think Smith should never play cricket again, just like I don’t think Hird should ever coach again 
Again, I don't necessarily disagree. Re: Hird, undocumented injections of players under your care is even worse than pure cheating. That's cheating and endangering others while you go about cheating. How he is still in the game I'll never know.
With Smith--just my vantage point at the time--I saw genuine remorse and shame in his press conference and afterwards as it sunk in what he had allowed to happen. Warner never seemed to give a stuff. Maybe I'm being ahistorical, but I thought he had no part in the planning as well and just let it happen under his watch. When he realized what he had acquiesced too he seemed devastated for more than just himself and he took a beating.
So I felt there was a way back for him. Not that it included captaining the side again or being VC, but a way to play again. Certainly not automatic, but a way back. Warner I never felt that way about. I could have misremembered the facts of the case but there we go.
