I agree, while it would be beneficial, if it were simply a matter of Spreading a Balance with an aoe Royal Road at the ready (just as an example), this would become almost mandatory, and that's something SE is trying to avoid. The "must have" scenarios. I just made the switch to AST and it seems to help my group, but card management is honestly better left as is.

I would however love to keep a Spread/Roaded card I've prepared before queueing, as that's effectively preparation on my own part. But I imagine it still falls under the same situation I mentioned above.