Just watched the full press conference (it's posted on the Blues facebook page in case you missed it).
Re:trading Copley,
Armstrong basically said he was an UFA at the end of the season and wasn't in the long term plans. I still think it was a stupid move and that Copley is a better goalie prospect than Binnington, but it's not the end of the world. He said Husso was the long term prospect that organization was focusing on and that Binnington would be fine in a tandem with him. He also mentioned how carrying 3 goalies is not ideal.
Again, I still think trading Copley for Malone was a really stupid move. If nothing else, Copley would have been great for the wolves to have for a playoff push even if we ended up losing him as an UFA! It's not like Malone has much value...the interesting part to me was how Armstrong talked about Copley being an UFA. I am guessing here, so take it with a grain of salt, but he almost sounded like he was worried about losing all the assets from the Oshie trade for nothing (I know the 3rd was used in drafting Thompson, but still...).